The Orioles placed starter Zach Eflin on the 15-day injured list with a right lat strain and recalled reliever Colin Selby, who was on the taxi squad last night in Arizona.
Eflin has made three quality starts in his three outings this season and allowed six runs in 18 innings.
Two off-days could prevent the Orioles from needing a fifth starter until April 19. They currently have nine relievers on their roster.
Heston Kjerstad remains in left field today for the finale of the two-city road trip. Ryan O’Hearn is the designated hitter, with Ryan Mountcastle at first base. Ramón Urías is playing third base and Jackson Holliday is at second, which puts Jordan Westburg on the bench.
Dean Kremer makes his third start after allowing seven earned runs (eight total) and 13 hits in 9 2/3 innings. Right-handers are hitting .318/.333/.364 against him and left-handers are hitting .300/.333/.450.