Matt Kawahara of the Houston Chronicle reports that Alvarez will begin a minor-league rehab assignment on Tuesday with Double-A Corpus Christi. He’ll serve as a designated hitter in his first rehab game back, and the club plans to have him down for “a few games” before he can be activated off the injured list.

Houston Astros All-Star closer Josh Hader will be shut down from throwing for approximately three weeks after the team announced he has been diagnosed with left shoulder capsule strain.

Houston Astros closer Josh Hader is looking to return in the postseason after suffering a shoulder injury while training on Monday.