McCullers' right arm is "a little sore" following a bullpen session Tuesday, Astros manager Dusty Baker told Chandler Rome of the Houston Chronicle on Friday.
Baker didn't divulge additional details other than to say "it's the same thing" McCullers is dealing with, which would seem to indicate it's the same forearm injury the pitcher battled through for most of 2022. While Baker doesn't seem concerned at this point in time, it's obviously not an ideal start to McCullers' camp.