Cowboys are catalyst for proposed rules

ORLANDO, Fla. -- A few years ago, Cowboys tight end Jason Witten lost his helmet during a collision with Eagles defenders and continued running downfield for about 25 yards.

Under a new proposal by the NFL, the result of that play wouldn't have happened. A proposed rule change states that a play would be blown dead and the ball would be spotted where the ballcarrier lost his helmet.

Another proposal by the league comes from what left tackle Flozell Adams did to the Giants' Justin Tuck last December.

Toward the end of the first half, Adams, who has a nasty history with Tuck, pushed him in the back, setting off a scrum along the Giants sidelines. Adams was penalized on the play, and that was it. Under a new proposal, that penalty would carry over to the second half.

The results of these proposals and many more will be revealed at some point Wednesday.