TORONTO (AP) -- Toronto right-hander A.J. Burnett left the Blue Jays' game Friday night against Boston after four innings because of a sore elbow.
Burnett, who signed a five-year, $55 million deal with the Blue Jays in the offseason after spending seven seasons with the Florida Marlins, began the season on the DL after scar tissue broke off in his elbow March 18 during spring training.
Blue Jays spokesman Jay Stenhouse said it was "consistent with what he experienced in spring training."
But Burnett will be examined by Dr. James Andrews in Birmingham, Alabama.
The scar tissue is left over from elbow ligament replacement surgery three years ago.
Burnett lost his first start of the season on Saturday, allowing four runs and seven hits in six innings of a 4-2 loss to Chicago on April 15.
He allowed three runs on five hits in four innings against Boston.
Burnett was a key piece of Toronto's offseason overhaul. The Blue Jays also added closer B.J. Ryan for $47 million over five years, signed catcher Bengie Molina and traded for slugger Troy Glaus and first baseman Lyle Overbay.