Jerry Crasnick of ESPN.com reports that the Cubs have signed Nate Schierholtz to a one-year, $2.25 million contract.
Carlos Martinez was forced to leave Friday's start against the Pirates with an apparent injury.
Taijuan Walker was forced to leave Friday's start against the Astros due to spasms on the left side of his neck.
Jacoby Ellsbury was forced to leave Friday's game against the Red Sox in the first inning with an apparent injury.
Friday's scheduled contest between the Athletics and Orioles was postponed due to inclement weather.
Rockies placed C Nick Hundley on the 15-day disabled list with a strained left oblique.
John Lackey recorded 11 strikeouts while holding the Nationals to two runs over seven innings in Friday's 8-6 victory.
Brian Dozier is sitting out Friday due to right hamstring soreness.
Ben Zobrist smacked a solo homer and a three-run blast in Friday's victory over the Nationals.
Brett Gardner (elbow) is back in the Yankees' lineup Friday.
Mike Moustakas (thumb) was scratched from Friday's lineup.
Alex Rodriguez (hamstring) could potentially return from the disabled list when first eligible on May 19.