Chen (elbow) is expected to cover two innings in a rehab start with High-A Jupiter on Friday, Joe Frisaro of MLB.com reports.

EDGE Analysis

Chen, who has been on the disabled list since early May with a partially torn UCL, previously made a pair of one-inning rehab appearances in the past week, so his advancement to a two-inning outing amounts to some incremental progress. That being said, until Chen is able to cover about five innings or 80 or so pitches during his rehab assignment, the Marlins probably won't consider activating him from the 10-day disabled list and slotting him back into the big-league rotation. It could be another week or longer before Chen is able to approach that workload.