The NFL is suspending Denver Broncos safety Kareem Jackson four games after his hit on Minnesota Vikings quarterback Joshua Dobbs Sunday night.

The league announced the suspension Monday afternoon while citing "repeated violations of playing rules intended to protect the health and safety of players." The suspension is the second of the season for Jackson for repeated illegal hits to opponents' heads.

Jackson lowered his helmet and hit Dobbs in his facemask on the first possession of Denver's 21-20 win. The hit dislodged the ball and resulted in a forced turnover for the Broncos, who converted the fumble into a field goal.