The Blue Jays slugger left Saturday night's game in Oakland after just a half-inning of play.
Blue Jays first baseman Edwin Encarnacion left Saturday night's game against the Athletics in the first inning, suffering a right quad strain while running out a ground ball.
Encarnacion grounded into a force play in the top of the first inning that allowed Jose Reyes to score, tying Encarnacion with Nelson Cruz of the Orioles for the major league lead with 70 RBI. But as Encarnacion was beating the relay throw to first base, he immediately grimaced upon reaching the bag, then hopped around for a moment before crumpling to the ground.
Toronto team trainers and manager John Gibbons immediately ran out to tend to Encarnacion, who remained laying on the ground for several minutes. Eventually, Encarnacion was helped off the field with the assistance of trainers George Poulis and Mike Frostad.
Adam Lind pinch ran for Encarnacion and replaced him at first base in the bottom of the inning.
Encarnacion has been one of the best hitters in the majors in 2014, hitting .277/.368/.591 with 26 home runs and 21 doubles. Toronto entered Saturday fourth in the American League in scoring at 4.59 runs per game and started the day in second place at 47-41, a half-game behind the Orioles in the AL East.