Marcus Cannon fined $15,750

FOXBOROUGH, Mass. -- New England Patriots right tackle Marcus Cannon was fined $15,750 by the NFL for his leg whip of Carolina Panthers defensive end Charles Johnson on Monday night.

Cannon wasn't penalized on the third-quarter play but Johnson was knocked out of the game and later diagnosed with a knee sprain. Johnson has been ruled out for Sunday's game at Miami.

"It's very frustrating,'' Panthers coach Ron Rivera said of Johnson's injury. "You're going into a game where you lose a guy on something that is an illegal play. Yeah, it's tough. It's frustrating.''

Cannon, a third-year player out of TCU, was thrust into the starting lineup in place of Sebastian Vollmer, who sustained a season-ending leg injury Oct. 27. Cannon reportedly apologized to Johnson after Monday's game.

Other fines from Week 11 included:

E.J. Biggers of the Washington Redskins, $21,000 for helmet-to-helmet contact with a defenseless player against the Philadelphia Eagles.

Gerald McCoy of the Tampa Bay Buccaneers, $15,750 for roughing the passer against the Atlanta Falcons.

Zack Bowman of the Chicago Bears, $15,750 for a horse collar tackle against the Baltimore Ravens.

Information from ESPN senior NFL Insider Chris Mortensen was used in this report.