Astros designated OF Fernando Martinez for assignment.
Bud Norris allowed one run in eight-plus innings as the Astros beat the Angels 3-1 on Wednesday.
Jordan Zimmermann allowed one run over seven innings, and the Nationals beat the Tigers 3-1 on Wednesday.
Adrian Gonzalez left Wednesday's game after the fourth inning with an apparent injury.
Rangers placed C A.J. Pierzynski on the 15-day disabled list, retroactive to May 6, with a strained right oblique.
Derek Holland limited the Brewers to one run over seven innings Wednesday in a 4-1 Rangers victory.
Oswaldo Arcia went 4-for-5 with an RBI and a run scored as the Twins beat the Red Sox 15-8 on Wednesday.
Jayson Werth will undergo an MRI on his right hamstring Thursday.
Evan Longoria homered and drove in three runs in the Rays' 10-4 victory over the Blue Jays on Wednesday.
Jake Peavy allowed one run over 6 2/3 innings in the White Sox' 6-3 win over the Mets on Wednesday.
J.J. Hardy launched a two-run homer in Wednesday's win over the Royals.
Diamondbacks manager Kirk Gibson said Heath Bell will get the first shot at closing while J.J. Putz is out.