Cavs C Jarrett Allen questionable for Game 1 vs. Celtics

(Photo credit: David Butler II-USA TODAY Sports)
Cleveland Cavaliers center Jarrett Allen, who has a right rib contusion, is questionable for Game 1 of the Eastern Conference semifinals against the Celtics in Boston on Tuesday.

The Cavaliers advanced to the semis by beating the Orlando Magic in seven games in the first round. Allen missed the final three games with the injury, which he appeared to suffer when he took an