Garrett has been diagnosed with a left elbow impingement following further evaluation last week, Christina De Nicola of MLB.com reports.

Manager Skip Schumaker said Saturday that Garrett experienced discomfort in his elbow during his latest bullpen session, Christina De Nicola of MLB.com reports.

Garrett (forearm) tossed three scoreless innings in his rehab start with Triple-A Jacksonville on Wednesday, striking out three batters while scattering three hits and two walks.

Garrett (forearm) is scheduled to make a rehab start with Single-A Jupiter on Thursday, Kevin Barral of FishonFirst.com reports.

Garrett (forearm) threw a two innings of live batting practice Saturday, MLB.com reports.

Garrett (forearm) threw a 25-pitch bullpen Friday and is scheduled to complete another bullpen session Tuesday, Christina De Nicola of MLB.com reports.

The Marlins transferred Garrett (forearm) to the 60-day injured list Tuesday.

Garrett (forearm) has began playing catch, Christina De Nicola of MLB.com reports.

Garrett is considered asymptomatic while he continues to rehab his strained left forearm at the Marlins' facility in Jupiter, Fla., MLB.com reports.

The Marlins placed Garrett on the 15-day injured list Sunday with a left forearm flexor strain, retroactive to Thursday.