Fiers (elbow) is slated to throw a bullpen session Friday, the Associated Press reports.

EDGE Analysis

The session will mark Fiers' first time throwing off a mound during his lengthy rehabilitation process. The veteran right-hander has been ramping up his workload for weeks and has apparently tolerated the process well. If that continues to hold true with Friday's activity, Fiers could potentially start a rehab assignment in the earlier part of September with an eye on availability in some form prior to the postseason.