Pro Football

San Francisco 49er quarterback Joe Montana underwent arthroscopic surgery on his left knee last weekend and has halted his workouts for 10 days, the Peninsula Times Tribune reported.

Montana, who at 35 is trying to come back from elbow surgery last fall, was seen leaving Sequoia Hospital in Redwood City in a wheelchair Saturday, according to the newspaper.

Club officials played down the severity of their quarterback’s knee problem, despite nine operations since joining the team in 1979, six in the last four years.