J.A. Happ stayed unbeaten with the Yankees by topping his former Toronto teammates, and Greg Bird hit a grand slam in a 10-2 win over the Blue Jays.
The Yankees completed a three-game sweep, but lost shortstop Didi Gregorius to an injured left heel.
Gregorius was hurt when he collided with Toronto first baseman Kendrys Morales beating an infield hit in the first, and was taken to a hospital for evaluation.
Happ (14-6) facing the Blue Jays for the first time since they traded him, has won all four of his starts for New York.
Happ allowed two runs and seven hits in 5 1/3 innings, striking out eight.