Philadelphia Phillies All-Star Bryce Harper (thumb) to start rehabilitation assignment on Tuesday 5:01 PM ET ESPN Philadelphia Phillies outfielder Bryce Harper , who is recovering from a fractured left thumb, is scheduled to begin a minor-league rehabilitation assignment on Tuesday, it was announced. Harper is expected to play with Triple-A Lehigh Valley through Saturday, Lehigh said in a statement. Last week, Harper completed a 60-swing BP session at Citizens Bank Park. It was the first time he'd swung a bat since his thumb was fractured by a pitch on June 25. The 7-time All-Star and 2-time MVP is batting .318 with 15 home runs and 48 RBI this season.