BOSTON — The Red Sox on Friday put 2B Dustin Pedroia on the DL with a hyperextended right thumb.
In May the 2008 MVP missed six games with a torn muscle in the same thumb. He and the team said the injuries are unrelated.
"I'm pretty frustrated by it," Pedroia said. "You work so hard in the offseason to prevent injuries, and you get a couple of freak accidents. It stinks. I'll be fine. I'll produce in a major way this season to help our team. I promise that. I'm a lizard. I heal while I play. I'm a freak healer. I heal great."
Pedroia, hitting .266 with six home runs and 33 RBIs, was hurt Tuesday when he tried to make a diving catch.
Baltimore-Greinke: The Orioles are "going hard" after Brewers pitching ace Zack Greinke, the Baltimore Sun reported. Early Friday, Baltimore demoted Jake Arrieta (3-9, 6.13 ERA) to Triple A a few hours after he set a season low for innings pitched for the second straight start. Tommy Hunter (3-4, 6.11) and Brian Matusz (5-10, 5.42), also in the rotation on opening day, were demoted last week. Greinke, the 2009 AL Cy Young Award winner, can become a free agent after this season.
Hamilton leaves: Rangers CF Josh Hamilton left in the fifth against the Twins with back spasms soon after misplaying a fly ball for a three-base error and making a long throw from the warning track. He is day to day.
All-star game: Cardinals LF Matt Holliday replaced his teammate, C Yadier Molina, on the NL team. Molina was placed on bereavement leave after the death of his wife's grandfather. His return to the team has not been determined. Holliday entered Friday hitting .500 with four homers, 10 doubles and 21 RBIs over his past 18 games. Overall he's hitting .318 with 14 homers and 56 RBIs.
Cubs: SS Starlin Castro did not start against the Mets for the first time this season. Manager Dale Sveum said he wanted to watch the game with one of his top young players and "talk to him about scenarios." His many mental mistakes this year have included forgetting how many outs there were on a potential double play grounder, which allowed the tying run to score. Castro did enter the game in the seventh. … RHP Ryan Dempster, out since June 18 with a tight muscle in his back, will start Sunday. Sveum said Dempster, who hasn't allowed a run in 22 consecutive innings, will be limited to 70 to 80 pitches.
Marlins: RF Giancarlo Stanton did not start against the Cardinals for the fourth consecutive game because of a sore right knee. But he pinch-hit and said he expected to start today and fully participate in next week's All-Star Game festivities, including the Home Run Derby. Stanton said the injury will require surgery but he hoped it could be put off until after the season.
Phillies: INF Hector Luna was sent to Triple A to make room for returning 1B Ryan Howard.
Yankees: 3B Alex Rodriguez called Reggie Jackson's comments about him "a nonissue" and "white noise," and that he was concentrating on playing the Red Sox. In a Sports Illustrated interview released Thursday, Jackson said those who used performance-enhancing drugs should not get into the Hall of Fame. Rodriguez has admitted using them. Meanwhile, a Yankees official said Jackson apologized and is working to make things right with those he might have offended.