Steelers QB Ben Roethlisberger to have MRI on left knee

MIAMI GARDENS, Fla. -- Quarterback Ben Roethlisberger plans to get an MRI on Sunday night for a left knee injury he sustained in the second quarter of the Pittsburgh Steelers' 30-15 loss to the Miami Dolphins.

Roethlisberger was sidelined with 8:18 left in the first half after 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 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.

"Don't know anything yet. We'll know tonight," Roethlisberger said. "Hopefully, we'll just pray that it's not too serious."

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

The offense looked out of sync for much of the day.

"We won't make excuses," Roethlisberger said. "We're all out there playing through pain and out there trying to give our all."