Gregerson has yet to pitch in a Grapefruit League game, but he should do so in the next few days, Brian McTaggart of MLB.com reports.

EDGE Analysis

The veteran reliever was slowed by oblique soreness early in camp, but he recently threw 18 pitches in a minor league game without setback. While Astros manager A.J. Hinch has not officially named a closer, Gregerson is expected to assume a set-up role to Ken Giles to open 2016.