Two Packers ruled out, two downgraded to doubtful

After Saturday's practice, the Green Bay Packers updated the injury report.

Safety Morgan Burnett (groin) and linebacker Clay Matthews (ankle/hamstring) have been ruled out for Sunday's matchup against the Detroit Lions.

Defensive tackle Letroy Guion (knee) and defenseman Datone Jones (knee) have been downgraded to doubtful.