Josh Hader: Everything you need to know

The Astros transferred Hader (biceps) to the 60-day injured list Friday. The Astros needed the spot on the 40-man roster to select Peter Lambert's contract from Triple-A ahead of Friday's start against St. Louis. With Hader being transferred to the 60-day IL, he won't be eligible to pitch until late-May. Hader threw his first live batting practice Tuesday, essentially marking the start of his spring training.

Hader (biceps) threw 20 pitches in a live batting practice session Tuesday and said afterward that it was akin to his first live BP of spring training, Brian McTaggart of MLB.com reports. McTaggart notes that Hader was sitting 91-to-93 mph with his fastball during the live session, and says that given Hader's quotes about where he is in his recovery the southpaw is "perhaps about a month away from returning, without any setbacks." Hader, who is working his way back slowly from a bout of left biceps tendinitis, added, "I'm feeling good, feeling strong. I got through it throwing relatively hard and commanded the baseball in the zone, commanded the slider, getting good whiffs on it. Ideally, that's what you want." Meanwhile, Bryan Abreu has struggled in the ninth inning for the Astros this season, opening the door for Enyel De Los Santos to earn a couple saves in recent days.

Hader (biceps) is throwing live batting practice Tuesday, Chandler Rome of The Athletic reports. The veteran left-hander has been throwing bullpen sessions for a while and has finally been cleared to face live batters after sitting out all of spring training due to biceps inflammation. Making his season debut for the Astros before the end of April still appears to be in play. However, early May seems more realistic for Hader given that he's likely to require a handful of rehab outings in the minors before being fully cleared.