 He began the 2015 regular season in the bullpen, but was moved into the starting rotation after the Blue Jays optioned Daniel Norris to the Triple-A Buffalo Bisons on May 1.On June 19, he took a no-hitter into the 8th inning against the Baltimore Orioles, which was broken up by a bloop single from Jimmy Paredes.In his next start, he took a perfect game into the 8th, which ended when Logan Forsythe hit a weak infield single.