Peterson will start Sunday's game against the Blue Jays in Buffalo.
After a one-game cameo in the bullpen, Peterson moved back into the rotation Sept. 7 and was lit up by the Phillies, giving up five runs on three hits and four walks in two innings. The Mets don't have many other appealing starting options to turn to, so Peterson will be given the opportunity to try and bounce back against the Blue Jays.