Treinen (shoulder) will throw a bullpen session Saturday, Bill Plunkett of The Orange County Register reports.

EDGE Analysis

Treinen threw 36 pitches in a bullpen session July 13 and threw off flat ground during the All-Star break. Assuming all goes according to plan, Treinen will face hitters in live batting practice by the close of July. He'll likely need at least a brief rehab appearance, putting him in line for a mid-August return.