CHICAGO -- Chicago Bears safety Ahmad Dixon suffered a hamstring injury during the second quarter of his team’s matchup against the Green Bay Packers on Sunday and has been ruled out for the game, the team announced.

Dixon walked off the field under his own power after the injury, and was examined on the sidelines by athletic trainers before the club made the announcement.

The Bears signed Dixon off the practice squad of the Minnesota Vikings on Sept. 8, and he’s participated in two games. Dixon recovered a fumble that led to a Bears score during the team’s Sept. 22 win on the road against the New York Jets.

Dixon came into the league as a seventh-round pick in May of the Dallas Cowboys. The Cowboys waived Dixon at the end of the preseason.