Markakis stays in lineup, Roberts sits (updated)

Cleveland Indians outfielder Shin-Soo Choo became the sixth major league player charged with a DUI this season. Good thing he wasn't tweeting or he might be facing a suspension. Here's the Orioles' lineup for tonight's game in Kansas City, which includes Nick Markakis one night after he hurt his right knee and right hand, but does not include Brian Roberts: Update: The Sun's Jeff Zrebiec tweets that Roberts had root canal surgery this morning and could be available off the bench tonight. Robert Andino SS Nick Markakis RF Derrek Lee 1B Vladimir Guerrero DH Mark Reynolds 3B Adam Jones CF Luke Scott LF Matt Wieters C Cesar Izturis 2B Brad Bergesen RHP In Bergesen's four starts this year, the Orioles have scored three runs while he was in the game and just 10 runs total. He hasn't left a start with a lead. The Orioles are 2-6 against left-handers this season, and they're facing Jeff Francis tonight. The Orioles named Single-A Delmarva shortstop Manny Machado the organization's Player of the Month for April, and Double-A Bowie right-hander Wynn Pelzer the Pitcher of the Month. Machado batted .338 (27-for-80) in 21 games, with six doubles, two triples, four home runs, 18 RBIs and 18 runs scored. He walked 16 times and struck out 11 times. Pelzer, who was acquired last summer from the Padres in the Miguel Tejada trade, was 1-1 with a 0.95 ERA in five games, including three starts. He allowed two earned runs, nine hits and nine walks, and struck out 17 over 19 innings. Opponents batted .150. Seattle's Michael Pineda was named the American League's Rookie of the Month for April after going 4-1 with a 2.01 ERA over five starts. He beat out Zach Britton, who was 4-1 with a 2.84 ERA.