GREEN BAY, Wis. -- Green Bay Packers safety Charles Woodson has a broken collarbone and will be out approximately six weeks.

Coach Mike McCarthy confirmed the severity of the injury Monday, a day after the team's 30-20 win at St. Louis.

The 36-year-old Woodson broke his clavicle in the 2011 Super Bowl win over Pittsburgh. McCarthy says Woodson is nervous about his latest injury.

The Packers played without four defensive starters against the Rams. They host Jacksonville on Sunday.

"He was a little nervous about it last night," McCarthy said when he addressed reporters. "If you've seen the play, it was a very similar action as he experienced in the Super Bowl."

Both McCarthy and defensive coordinator Dom Capers said Woodson was hurt with 2:44 left in the game when he dove for a pass that Sam Bradford completed to wide receiver Brandon Gibson.

Woodson briefly rolled around on the turf before getting up, holding his right shoulder area.

Woodson stayed in the game for the next play, on which Bradford completed a pass to Steve Smith on fourth down. It appeared that Woodson, still in pain from the previous play, allowed fellow safety Morgan Burnett to secure the tackle.

"You saw him protecting his one shoulder," Capers said. "He kind of hit (Smith) with one shoulder and kind of walked away. So you could tell that he hurt his shoulder on that play. But I went to him in the locker room after the game and he wasn't sure. He definitely said it was when he dove to make the interception."

McCarthy said the team would give Woodson every opportunity to return this season.

With the game in hand at 30-13, Woodson did not return to the field for the Rams' final possession with 1:52 to play. In their dime defense, their six defensive backs were Tramon Williams, Casey Hayward, Jerron McMillian, M.D. Jennings, Davon House and Burnett. McMillian and Jennings had shared the nickel and dime safety job -- with Jennings getting more snaps in that role -- while Woodson had been in the game.