Orioles activated RHP Chris Tillman from the 15-day disabled list.
Michael Saunders flew home from Arizona on Wednesday to deal with a personal matter.
Zack Greinke (oblique) is scheduled to throw off a mound Wednesday for the first time since landing on the disabled list.
Danny Valencia is out of the A's starting lineup Wednesday afternoon against the Astros.
Kevin Kiermaier is out of the Rays' starting lineup on Wednesday afternoon against the Rockies.
Mariners activated RHP Felix Hernandez from the 15-day disabled list.
Alex Gordon is absent from the Royals' starting lineup on Wednesday afternoon.
Yoenis Cespedes is not in the Mets' starting lineup Wednesday against the Cubs.
Adam Duvall is out of the Reds' starting lineup Wednesday afternoon against the Braves.
Nationals GM Mike Rizzo said Wednesday morning that he is not pursuing Rockies outfielder Charlie Blackmon.
According to Jerry Crasnick of ESPN, the Giants have scouted Brewers relievers Will Smith and Jeremy Jeffress in their ongoing search for bullpen help.
Josh Reddick hit a walk-off, opposite-field RBI single to beat the Astros in the 10th inning of Tuesday night's 4-3 victory.