BOSTON -- Red Sox right-hander Hunter Dobbins said on Saturday that he knew his season was probably over when he felt a familiar sensation in his knee. Dobbins was diagnosed with a torn anterior cruciate ligament, his second ACL tear in his right knee. I've torn my ACL in this knee before, and it was the same feeling," he said, standing in the middle of Boston's clubhouse with a red sleeve on his right leg. "Tough," Cora said before the Red Sox faced the Rays. The Red Sox placed him on the 15-day injured list Saturday and recalled right-hander Richard Fitts.