Giants sent RHP Eric Hacker outright to Triple-A Fresno.
Johnny Cueto spun a gem Wednesday, striking out 12 while giving up just three base hits in a 4-0 shutout win over the Pirates.
Jose Tabata has been diagnosed with "mild" concussion-like symptoms.
Joe Kelly left Wednesday's game against the Brewers with a left hamstring injury.
Mets manager Terry Collins said Wednesday that he expects Curtis Granderson (ribs) back in the lineup on Saturday.
Wednesday's game between the Blue Jays and Twins has been postponed due to inclement weather.
Astros purchased the contract of OF George Springer from Triple-A Oklahoma City.
David Robertson (groin) remains on track to return from the disabled list when first eligible on April 22.
Angels manager Mike Scioscia told the media after Tuesday's game that Kole Calhoun (ankle) is heading for the disabled list.
Jim Johnson earned the win Tuesday night against the Angels by tossing two scoreless innings of relief in the 11-inning, 10-9 win.
Bronson Arroyo was lit up by the Mets for nine runs on 10 hits over 3 1/3 innings of a 9-0 loss on Tuesday.
Brett Lawrie hit a grand slam in the ninth inning to extend the lead, and the Blue Jays finished off the Twins 9-3 on Tuesday.