Astros manager Joe Espada said Sunday that it's "pretty safe to say" McCullers (forearm) won't be activated from the 60-day injured list this season, Brian McTaggart of MLB.com reports.

Astros manager Joe Espada said Tuesday that McCullers (forearm) will not throw for a few days, Chandler Rome of The Athletic reports.

McCullers (shoulder) is scheduled Saturday to throw 25 warmup pitches and then take a break to mimic a half-inning before throwing more pitches, Chandler Rome of The Athletic reports.

McCullers (forearm) threw a light bullpen session Saturday, Matt Kawahara of the Houston Chronicle reports.

McCullers (forearm) has begun throwing off the slope of the mound in recent days, MLB.com reports.

The Astros placed McCullers (elbow) on the 60-day injured list Thursday, Brian McTaggart of MLB.com reports.

McCullers (forearm) said Monday that he's aiming to make his season debut in "late June, early July" Chandler Rome of The Athletic reports.

McCullers (forearm) said Saturday that he expects to return toward the end of the summer, Chandler Rome of The Athletic reports.

Astros general manager Dana Brown said Tuesday that McCullers (forearm) might not be ready to pitch again until early July of 2024, Chandler Rome of The Athletic reports.

McCullers underwent season-ending surgery Tuesday to repair a torn right flexor tendon and remove a bone spur from his right forearm, Chandler Rome of The Athletic reports.