11/08/2010 12:26 pm ET Updated Dec 06, 2017

Nick Collins Helmet Hit On Dallas' Roy Williams Being Reviewed By NFL (VIDEO)

GREEN BAY, Wis. -- Green Bay Packers safety Nick Collins could face additional discipline from the NFL after a helmet-to-helmet hit on Dallas Cowboys wide receiver Roy Williams.

A league spokesman says the play is under review. The NFL is cracking down on illegal hits, and players who violate the rules are subject to increased fines or even suspensions.

Collins went helmet-to-helmet with Williams after an incompletion in the third quarter of the Packers' 45-7 victory over the Cowboys Sunday night. Collins was flagged for unnecessary roughness.

Williams said after the game that he didn't think Collins should be punished for the hit.

Scroll down to watch the video.