Gunnar Henderson is the Orioles designated hitter tonight for the opener of an important three-game series in Toronto.

Henderson has reached base in 13 of his first 14 career games and has recorded a hit in 11 of 13 starts. He’s among five players in Orioles history with at least seven extra-base hits in his first 14 games, joining Trey Mancini, Manny Machado, Curt Blefary and Cedric Mullins.

Second baseman Rougned Odor has returned to the lineup after a two-game absence. Ramón Urías is the third baseman.

Anthony Santander is in right field, and Austin Hays is in left and batting eighth.

The bullpen has tossed 11 consecutive scoreless innings.

The Orioles will have seven representatives on the Scottsdale roster in the Arizona Fall League, including outfielder Heston Kjerstad and infielder César Prieto.

Also playing in the AFL are pitchers Noah Denoyer, Nolan Hoffman, Easton Lucas and Nick Richmond, and outfielder Reed Trimble.

MLB Pipeline ranks Kjerstad as the No. 10 prospect in the organization and Prieto 19^th.

These are important at-bats for Kjerstad after the late start to his professional career following a diagnosis of myocarditis in 2020 and his hamstring injury in March. The second-overall pick in the 2020 draft appeared in 22 games with Single-A Delmarva and 43 with High-A Aberdeen during the regular season.

Kjerstad batted .463/.551/.650 with nine doubles, two home runs and 17 RBIs in 98 plate appearances with Delmarva and .233/.312/.362 with eight doubles, two triples, three home runs and 20 RBIs in 186 plate appearances with the IronBirds.

As infielder Gunnar Henderson proves that he belongs in the majors and the Orioles didn’t rush him or hinder their playoff chances based on his arrival - he's inflating their optimism like a bicycle tire - there’s one more prospect who could come along for the ride.

The No. 1 pitcher in the minors.

What’s the plan with Grayson Rodriguez?

Unfortunately, there aren’t many details for anyone seeking them except for the more immediate future. But at least it provides some drama beyond the quest for one of the three wild card spots.

Rodriguez is starting Friday night for Triple-A Norfolk against the Charlotte Knights at Harbor Park. He stays on regular rest after Sunday’s injury rehab start at Double-A Bowie.

WASHINGTON – The televisions inside the visiting clubhouse today were tuned to Game 1 of a doubleheader between the Blue Jays and Rays. It wasn’t just background noise. Players didn’t walk past and glance at the screen.

They sat in chairs and on sofas and tracked every pitch as the Jays tried to rally in the ninth inning. Two teams ahead of them in the wild card race. The indoor version of scoreboard watching.

What does manager Brandon Hyde root for in this instance?

“A ton of bullpen usage,” he said.

“I think you hope that they kind of beat each other or split or whatever. But we’ve got to take care of what we do. None of that’s going to matter if we’re losing series.”

WASHINGTON – Orioles second baseman Rougned Odor has his right hand wrapped after being hit by a pitch Sunday and leaving the game. However, Odor said he probably could pinch-hit tonight and expects to be in Wednesday's lineup.

Odor still has some soreness in the hand. Ramón Urías is starting at second base.

“A lot better today,” said manager Brandon Hyde. “When he came out of the game a couple days ago, it was really swollen, but a lot of treatment on it today, an off-day yesterday was really helpful, and should be available off the bench tonight.”

Austin Voth won’t start against his former team in this two-game series, but he’s available out of the bullpen.

Off-days yesterday and Thursday enable Hyde to adjust his rotation, and Voth is being skipped. Voth will jump back into it for his next turn.

WASHINGTON – The Orioles begin a two-game series tonight against the Nationals with Gunnar Henderson playing third base, Kyle Stowers in left field and Austin Hays in right.

Rougned Odor, who left Sunday’s game with a bruised right hand, is on the bench. Ramón Urías is playing second base.

Anthony Santander is the designated hitter.

Hays had his first multi-hit game Sunday since Aug. 27 in Houston.

Dean Kremer has never faced the Nationals.

The Orioles need to flush yesterday’s 17-4 loss to the Red Sox and get ready for today’s series finale.

They have plenty of water to do it. Rain is in the forecast all day.

The Orioles surrendered 10 runs or more for the eighth time. The 17 runs and 21 hits were both season highs.

Mike Baumann was recalled from Triple-A Norfolk this morning. The Orioles optioned Yennier Canó after his debut with the team yesterday resulted in seven runs, six hits and three walks in 1 2/3 innings.

Baumann started Game 1 of Monday’s doubleheader as the 29^th man. He’s a fresh arm that could provide length if needed behind starter Kyle Bradish.

Kyle Stowers drifted back to the right field fence tonight, leaped for Xander Bogaerts’ fly ball and held up his glove after his feet again touched dirt. It was empty.

The Orioles couldn’t afford to experience that feeling hours later as they filed into the clubhouse.

A team that prides itself on its resiliency, confidence and closeness needed to tap into the supply. The games are going away. The Orioles are fighting to stick around.

Rookie Brayan Bello carried a shutout into the sixth inning before the Orioles rallied for three runs to take the lead, which they protected with a backup closer in a 3-2 victory over the Red Sox before an announced crowd of 16,451 at Camden Yards.

Dillon Tate inherited a runner from Bryan Baker with two outs in the eighth and overran Kiké Hernández’s slow roller for an error. He struck out pinch-hitter Reese McGuire, returned for the ninth and recorded his fourth save after Alex Verdugo reached with one out on an infield hit.

Jordan Lyles felt good after yesterday’s bullpen session, did some light throwing today and seems ready to start Saturday afternoon against the Red Sox.

Lyles was scratched from Monday’s doubleheader due to a stomach virus.

“I’m hoping,” said manager Brandon Hyde. “He’s feeling better every day, so I’m hoping he’s able to start tomorrow.”

“I hope so,” Lyles said. “I’ll let Hyder discuss the plans going forward, but I feel much better, and hopefully I can get out there soon.”

Shortstop Jorge Mateo is out of the lineup. The shortstop was hit on the leg two days ago while covering second base on a steal attempt, but Hyde said he’s just “rotating guys around.”

The Orioles resume their homestand tonight with Gunnar Henderson starting at shortstop against the Red Sox, Austin Hays batting eighth and playing left field, and Kyle Stowers batting ninth and starting in right.

Ramón Urías is the third baseman and batting sixth behind Henderson.

Jorge Mateo is on the bench.

Catcher Adley Rutschman is 10-for-24 during a six-game hitting streak, with three doubles, two home runs, six RBIs, three walks and five runs scored. His 29 doubles this year lead major league rookies and are tied for second-most among Orioles catchers in club history with Matt Wieters in 2013 and Ramón Hernández in 2006.

His 29 doubles also are tied with Hall of Famers Eddie Murray (1977) and Cal Ripken Jr. (1982) for most by an Orioles rookie in franchise history.

The regular season is down to 25 games. Six against the Blue Jays, who lead them by 4 1/2 in the wild card race.

What the Orioles do over these last four weeks will be an entertaining watch.

It’s about more than results on the field, though, who isn’t dying to find out what happens? Baseball really matters in Baltimore while the Ravens get set for their opener on Sunday. Hasn’t been like this in a while.

Also fascinating is how the games and rosters are handled in the heat of a pennant race. How the organization reacts to it while venturing into an area that’s been restricted since the teardown started.

Brandon Hyde managed with his hands tied in Monday’s doubleheader, unable to use veteran Jordan Lyles and seeking volunteers for Game 2. Mike Baumann’s first major league start was scheduled for the nightcap, but he got bumped up to Game 1. Keegan Akin sprinted to the bullpen to warm after Lyles was scratched, with the short notice preventing Bruce Zimmermann from taking the assignment.

The plan was devised late last night or early this morning, depending on whether the clock struck midnight. Manager Brandon Hyde called Dean Kremer into his office to inform the right-hander of the club’s decision to use him in relief tonight behind Tyler Wells, who learned that he’d be removed from his rehab assignment, activated from the injured list and start against the Blue Jays.

Building up a starter’s pitches and innings is hard to do in the majors, but so is catching a team in the wild card chase and completing the improbable run from 110 losses to the playoffs.

The leash was transparent. Hyde said he wouldn’t extend Wells much past the 31 pitches thrown at High-A Aberdeen. Too soon for it.

Wells backloaded them tonight, with four in the first and 30 in the second before Kremer was tagged into the match.  

The wrinkle in an otherwise smooth plan was the Blue Jays breaking a tie in the fifth inning and winning the series with a 4-1 victory over the Orioles at Camden Yards.

The Orioles are building up Tyler Wells to be a starter again.

But they’re doing it in the majors.

The decision was made late last night to activate Wells from the 15-day injured list and start him tonight against the Blue Jays. The alternative was to keep him on a rehab assignment in the minors.

A few more important points:

* Dean Kremer is pitching in relief tonight, but it’s a one-and-done. He goes back into the rotation. This isn’t a piggyback situation because Wells isn’t stretched out to do it, and the club wants Kremer starting again.

The Orioles conclude their four-game series tonight with the Blue Jays by starting Kyle Stowers in left field and using Gunnar Henderson as the designated hitter.

Austin Hays is on the bench.

Tyler Wells was reinstated from the 15-day injured list and gets the start instead of Dean Kremer. This is Wells’ first game with the Orioles since straining his left oblique on July 27.

No word on what happens to Kremer.

Wells has made seven career appearance against Toronto, the first six in relief last summer, and allowed nine runs and 16 hits in 12 2/3 innings. He held the Jays to one run in six innings in a June start at Rogers Centre.

The Orioles are making more changes to the rotation, this one based on a pitcher’s good health.

Tyler Wells has been reinstated from the 15-day injured list and is handling tonight’s start against the Blue Jays to conclude a four-game series at Camden Yards.

Spenser Watkins has been optioned to Triple-A Norfolk to create room on the active roster. He was scheduled to start Saturday afternoon against the Red Sox at Camden Yards.

Additional details on the rotation haven’t been announced, but Dean Kremer was supposed to start tonight.

Jordan Lyles is recovering from flu-like symptoms that knocked him out of Monday’s doubleheader. His status has been day-to-day, and it’s unknown whether he’s an option for the weekend.

Dillon Tate wasn’t expecting to make his earliest appearance in a game in more than a year last night. The bullpen phone rang with no outs in the fourth inning and two runners on base, and he grabbed his glove and a ball.

This wasn’t playoff baseball, but it sure felt and sounded like it.

“It’s just part of the job to be ready when your name is called,” said Tate, who earned the win after allowing one run in 1 2/3 innings in the Orioles’ 9-6 victory over the Blue Jays at Camden Yards.

Manager Brandon Hyde needed to keep the deficit at three runs and turned to one of his high-leverage relievers. Tate inherited runners on the corners, didn’t let the Blue Jays expand their lead by performing a nifty escape act, and watched the Orioles score five times in the bottom half.

The bullpen covered the last six innings and the Orioles moved within 3 1/2 games of the last wild card spot.

Manager Brandon Hyde has seen the many examples this season, when his club appeared on the verge of spiraling and instead dug in its heels and pushed upward. Being swept in yesterday’s doubleheader tested its resolve again, its sense of direction.

The Orioles regained their balance. When they absolutely, positively had to do it.

Down by three runs early, they fought back rather than folding and gave themselves a chance to split the series by scrambling the usual bullpen pattern and defeating the Blue Jays 9-6 at Camden Yards.

Bo Bichette hit his fourth home run in two nights and came within a triple of the cycle, but the Orioles scored five times in the bottom of the third inning and used four relievers to reach the finish line in front. Gasping for air while crossing it but strong enough to defend themselves.

"It's a big win just because of where we are in the standings and the team we're playing," Hyde said. "Real excited about how we came back tonight. Kind of pieced it together, bullpen-wise and a couple nice rallies."

The Orioles kept Jordan Lyles at home today while he recovers from his flu-like symptoms. His status hasn’t changed and the club won’t predict his next start.

Lyles was pushed back from Game 1 to Game 2 yesterday, then scratched after attempting to warm in the bullpen.

“He’s feeling a little bit better today,” said manager Brandon Hyde. “Still feeling sick, so not here, and hopefully he gets better soon.”

Hyde said Lyles is “day-to-day right now.” Dean Kremer is starting Wednesday’s series finale against the Blue Jays, and the Orioles are off Thursday before hosting the Red Sox in a weekend series.

The Orioles are listing Austin Voth, Spenser Watkins and Kyle Bradish as starters against the Red Sox, who are countering with Brayan Bello, Michael Wacha and Rich Hill.

The Orioles made the anticipated roster move today to reinforce their bullpen, optioning left-hander Bruce Zimmermann to Triple-A Norfolk after he worked six innings yesterday in Game 2 of the doubleheader and adding right-hander Jake Reed to the active roster.

There was more.

Left-hander Nick Vespi also was optioned after appearing on three consecutive days, and right-hander Yennier Cano was recalled from Norfolk.

Reed, 29, was claimed off waivers yesterday from the Dodgers. He allowed one run and six hits in 4 2/3 innings after Los Angeles selected him off waivers from the Mets in July.

Reed, drafted by the Twins in the fifth round in 2014 out of the University of Oregon, has registered a 5.57 ERA and 1.381 WHIP in 20 games over two seasons.

Anthony Santander admits that he knows nothing about Bobby Bonilla’s playing days and how their Orioles careers intersected over the weekend.

“I just heard about his contract,” Santander said, laughing. “I want his agent.”

The Mets owe Bonilla $1,193,248.20 every July 1 through 2035, when he’s 72-years-old, as part of their agreement on deferred money after releasing him following the 1999 season. Bonilla’s agent, Dennis Gilbert, possessed the contract until it sold at auction last month.

Bonilla played for the Orioles for 1 ½ seasons, beginning on July 28, 1995 when they acquired him from the Mets for outfielders Damon Buford and Alex Ochoa. He amassed 28 home runs in 1996, and no Orioles switch-hitter reached 25 since then until Santander on Saturday.

This is where they are joined together. Santander took my word for it.