Sebastian Vollmer has leg injury

FOXBOROUGH, Mass. -- New England Patriots starting right tackle Sebastian Vollmer was carted off the field after a right leg injury in the second quarter of Sunday's 27-17 win against the Miami Dolphins and did not return.

Vollmer appeared to have a player roll up on his leg during a first-down rushing play, sending him to the ground in noticeable pain. CBS' sideline microphones picked up Vollmer's groans after he went down.

The Patriots did not offer an update after the game on the specifics of the injury, only that it was to his right leg.

"It's always tough. Sebastian, he's a good player, good teammate, good friend, so we're hoping for the best," fellow offensive lineman Logan Mankins said. "We don't know what happened yet, but hopefully it's not too bad."

A starter for New England in each game this season, Vollmer is regarded as one of the best right tackles in the NFL.

The 2009 second-round pick out of Houston was re-signed by the Patriots this offseason to a lucrative four-year extension.

The Patriots replaced Vollmer with third-year player Marcus Cannon, who has previously filled in for Vollmer in prior injury situations.

"He's a good kid, he works hard and he tries to get better, so I think he must've done something right today because we were able to score some points when he was in there," Mankins said of Cannon.