Pirates signed RHP Kyle Waldrop to a minor league contract.
Edwin Encarnacion went 2-for-4 with a home run and three RBI as the Blue Jays beat the Rockies 8-3 on Tuesday.
Red Sox placed RHP Clay Buchholz on the 15-day disabled list, retroactive to June 9, with a strained neck.
Chris Perez (shoulder) allowed three homers and five runs in an inning of work in his second rehab appearance with Double-A Akron.
Marco Scutaro is back in the Giants' lineup Tuesday.
J.J. Putz (elbow) will begin a rehab assignment with Triple-A Reno on Thursday.
Michael Morse is not in the Mariners' lineup Tuesday due to his nagging right quad injury.
Tuesday's game between the Dodgers and Yankees has been postponed due to rain.
Roy Oswalt is officially scheduled to make his Rockies debut Thursday in D.C. against the Nationals.
Mariners activated 1B Justin Smoak from the 15-day disabled list.
Josh Willingham (knee) is back in the Twins' starting lineup on Tuesday evening versus the White Sox.
Anthony Rizzo is not in the Cubs' starting lineup on Tuesday night against the rival Cardinals.