Pirates general manager Neal Huntington confirmed Wednesday that Jason Grilli will take over as closer following the trade of Joel Hanrahan.
Doug Fister (elbow) threw two-plus innings in a minor league game Monday.
Astros manager Bo Porter on Monday named Scott Feldman the club's Opening Day starter.
Daryl Van Schouwen of the Chicago Sun-Times reports that Conor Gillaspie is "tightening his grip" on the White Sox' third base job.
Cody Ross (hip) made his Cactus League debut Sunday, striking out as a pinch-hitter.
White Sox manager Robin Ventura announced Sunday that Tyler Flowers would be his starting catcher "unless something drastically changes."
Yahoo! Sports' Jeff Passan reports that there is "significant concern" that Joe Wieland might have re-torn the ulnar collateral ligament in his right elbow.
Tigers general manager Dave Dombrowski indicated Sunday that the Tigers will stick with "internal candidates" to replace Jose Iglesias.
Dodgers designated RHP Javy Guerra for assignment
Ollie Connolly of Outside Pitch MLB reports that the Tigers are going to make a "serious run" at acquiring Nick Franklin from the Mariners.
Michael Bourn was removed from Sunday's Cactus League game against the Giants with mild tightness in his left hamstring.
Nick Piecoro of the Arizona Republic reports that Tommy John surgery has been recommended to Patrick Corbin (elbow).