Chen (elbow) tossed 20 pitches in a bullpen session Wednesday as he continues to target a mid-September return, MLB.com reports.

EDGE Analysis

It the veteran's first mound work since landing on the DL in late July and all reports have been positive as he continues to progress through rehab. Chen piled up a 4.99 ERA and 1.30 WHIP in 110 innings pitched over 19 starts and would provide a solid boost to the Marlins rotation down the stretch if he's able to return.