Cobb, who has developed into the Packers' version of Percy Harvin, was injured after he fielded a punt. He slowly jogged off the field with a noticeable limp, but he originally looked to be fine as he jogged on the sideline. Moments later, Cobb was taken to the Packers' locker room.
Cobb had three receptions for 62 yards and a touchdown before he left the game.
Follow Kareem Copeland on Twitter @kareemcopeland.