Pena (knee) went through baseball activities in front of the Astros coaching staff and training staff Monday, Chandler Rome of the Houston Chronicle reports.

EDGE Analysis

Pena has been dealing with a sore right knee and hasn't played since Thursday. His extensive workout seems to a test of whether he's ready to play Monday against the Red Sox, with a trip to the injured list potentially in play if it looks like he'll still need several more days to recover.