Rupp is starting at catcher and batting fifth against Toronto on Thursday, Jim Salisbury of CSNPhilly.com reports.
Rupp received an off day Wednesday but is back out there for the final game of the Phillies-Blue Jays series. The 27-year-old will look to break out of a mid-June slump Thursday, as he's batting 2-for-19 (.105) over his last five games.