Zack Wheeler faces Blue Jays at Citizens Bank Park

The right-hander will take the mound at Citizens Bank Park coming off back-to-back abbreviated outings — one of his own doing and the other not so much.

Wheeler lasted only three innings on July 27 in Miami, where he allowed a season-high five runs in just three innings. Most concerning, though, was the fact that his four-seam fastball averaged only 93.5 mph — down 1.7 mph from his season…