Wacha will start Sunday's game against the Rangers, Chris Halicke of SI.com reports.
Wacha made five starts in April, but he's been used as an opener or reliever since returning from the injured list in late May. Considering he hasn't covered more than three innings in any of his appearances since being activated, Wacha likely won't be asked to work deep Sunday into what may effectively be a bullpen game for the Rays.