New England Patriots outside linebacker Jerod Mayo (51) rides an exercise bicycle prior to NFL football practice in Foxborough, Mass., Tuesday, Nov. 20, 2012. (AP Photo/Charles Krupa)

New England Patriots cornerback Devin McCourty (32) heads to the field prior to a football practice in Foxborough, Mass., Tuesday, Nov. 20, 2012. (AP Photo/Charles Krupa)

New England Patriots running back Danny Woodhead, right, and wide receiver Julian Edelman head to the field prior an NFL football practice in Foxborough, Mass., Tuesday, Nov. 20, 2012. (AP Photo/Charles Krupa)

New England Patriots punter Zoltan Mesko catches a pass prior to NFL football practice in Foxborough, Mass., Tuesday, Nov. 20, 2012. (AP Photo/Charles Krupa)

New England Patriots quarterback Tom Brady, center, walks past teammate as he heads to the field prior to NFL football practice in Foxborough, Mass., Tuesday, Nov. 20, 2012. (AP Photo/Charles Krupa)

New England Patriots wide receiver Julian Edelman yawns as he stretches prior to NFL football practice in Foxborough, Mass., Tuesday, Nov. 20, 2012. (AP Photo/Charles Krupa)

New England Patriots quarterback Tom Brady walks past exercise bicycles as he heads to the field prior to NFL football practice in Foxborough, Mass., Tuesday, Nov. 20, 2012. (AP Photo/Charles Krupa)

New England Patriots quarterback Tom Brady listens to a reporter's question during an NFL football news conference in Foxborough, Mass., Tuesday, Nov. 20, 2012. (AP Photo/Charles Krupa)

New England Patriots quarterback Tom Brady listens to a reporter's question during an NFL football news conference in Foxborough, Mass., Tuesday, Nov. 20, 2012. (AP Photo/Charles Krupa)

New England Patriots cornerback Devin McCourty, right, watches as running back coach Ivan Fears checks his notes prior to a football practice in Foxborough, Mass., Tuesday, Nov. 20, 2012. (AP Photo/Charles Krupa)