Joyce (back) has gone just 3-for-17 at the plate in seven rehab games for Double-A Reading and Triple-A Lehigh Valley.
Joyce was supposed to serve as at least a useful bench bat for the Phillies this season. Injuries have limited him to just 62 plate appearances in which he's hit a miserable .100/.258/.240. He's been out with a lower-back strain since mid-June, and while he's been able to get into game action, he's given the Phillies no reason to rush him back.