Gregerson (ankle) is expected to be available out of the Houston bullpen for this week's series against Oakland, The Houston Chronicle reports.

EDGE Analysis

Gregerson has been out with an ankle injury since August 18. Ken Giles remains in the closer's role for Houston, with Gregerson pitching more in a seventh or eighth inning setup role with Will Harris. Gregerson has a pristine 0.90 WHIP but has been tagged for a 3.15 ERA this season.