The Rockies placed Gilbreath on the 15-day injured list Monday with left shoulder inflammation.

The Rockies activated Gilbreath (elbow) from the 60-day injured list Friday.

Gilbreath (elbow) allowed two runs (one earned) on one hit and one walk while striking out two across one inning in an Arizona Complex League game Tuesday.

Gilbreath (elbow) will throw a bullpen session Saturday and will begin his rehab assignment with the Arizona Complex League Rockies early next week, Patrick Lyons of JustBaseball.com reports.

Gilbreath (elbow/shoulder) threw his third bullpen session Saturday and will begin facing hitters at the Rockies' facility in Arizona this week, MLB.com reports. "[His side session] went great, he threw all his pitches," manager Bud Black said. "He'll be in some games within a week in Arizona, and then probably we'll jump him up a level."

Manager Bud Black said that Gilbreath (elbow/shoulder) is "progressing" after the southpaw resumed throwing June 3 at Coors Field, MLB.com reports.

Gilbreath (shoulder) has yet to resume throwing, MLB.com reports.

The Rockies transferred Gilbreath (elbow/shoulder) to the 60-day injured list Tuesday.

Gilbreath (elbow) pitched in a simulated game Tuesday, Luke Zahlmann of The Denver Gazette reports.

The Rockies placed Gilbreath on the 15-day injured list Thursday, retroactive to March 25, with a left elbow injury.