Source: Ben Roethlisberger will undergo surgery on torn left meniscus; timetable uncertain

— -- Steelers quarterback Ben Roethlisberger has a torn meniscus in his left knee and will undergo surgery Monday morning, a league source told ESPN's Adam Schefter.

The source says doctors expect the procedure on Roethlisberger's knee to be "a cleanup," not a full repair of the meniscus, and this generally favors a quicker recovery.

The team won't know how long Roethlisberger will be sidelined until after the surgery, but he will definitely miss at least next Sunday's game against the New England Patriots, according to the source.

The story was first reported by the Pittsburgh Post-Gazette and confirmed by ESPN.

Roethlisberger was sidelined with 8:18 left in the first half of Pittsburgh's 30-15 loss to the Miami Dolphins on Sunday. He was running a bootleg away from Dolphins defensive end Mario Williams, who appeared to nick Roethlisberger's leg as the QB made his way out of the pocket.

Roethlisberger said after the game that he "felt something funny in my knee," prompting a trip to the locker room. Upon a first evaluation, the team doctor thought Roethlisberger's leg had hyperextended from the contact, said Roethlisberger, who also has bruising in his right knee from a separate, late-game collision.

Backup Landry Jones played one full series in place of Roethlisberger, who finished 19-of-34 for 189 yards, one touchdown and two interceptions. Roethlisberger played the entire second half.