Updated

Blue Jays left-hander Ricky Romero has undergone arthroscopic surgery on his left elbow and is expected to need six weeks to recover.

Dr. Lewis Yocum operated after the regular season, Toronto said Tuesday. Romero also received platelet rich plasma treatments in both knees to enhance recovery of quadriceps tendinitis.

Romero was 9-14 with a 5.77 ERA and left his final start, on Sept. 30, after three innings because of a left leg injury.