GREEN BAY, Wis. (AP) -- Clay Matthews III's first big NFL moment came in Minnesota earlier this month, when he wrestled the ball away from star running back Adrian Peterson and ran it in for a touchdown.

The rookie's first big game came against Detroit on Sunday.

Playing for the first time as an every-down outside linebacker in Dom Capers' 3-4 defense, Matthews had two sacks and three tackles for losses as the Packers beat the Lions 26-0.

Packers coach Mike McCarthy says Matthews was one of five players to earn a game ball.

McCarthy also says wide receiver Jordy Nelson is likely to miss two weeks with a knee sprain. Green Bay plays at Cleveland on Sunday.

(Copyright 2009 by The Associated Press. All Rights Reserved.)