UPDATE: Chad Clifton has returned to the game.

Updated on January 23, 2011 at 3:50PM

On the opening drive of the game, Green Bay Packers’ left tackle Chad Clifton took a knee to the head from his own teammate.

On the play, Packers’ quarterback, Aaron Rogers ran the ball in for a touchdown and Clifton received immediate attention on the sideline from the Packers’ medical staff.

T.J. Lang has replaced Clifton in the lineup. Clifton’s exact injury isn’t known, but it was reported as a stinger by FOX Sports.

Midway though the second quarter, Clifton returned to the sideline.

Originally posted on January 23, 2010 at 3:01PM

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