NFL owners are expected to pass a rule change that would prohibit the "leaper" block attempt on field goal and extra-point plays, according to sources.

The league feels the play has become too dangerous. The rule change was sparked by a proposal from the Philadelphia Eagles and with backing from the NFL Players Association.

"The issue, we've looked at a lot of tape on the jumper, is how it's being defended at this point; whether it's the snapper or the guard raising up and attempting to make contact with the jump, we've seen several examples where players have been flipped over, land on their head, their neck, and the potential for a serious injury certainly increases when you have a player in a vulnerable position who is now going to be knocked off balance and really can't control the way they land. So I think that's probably the biggest thing, and we have seen that on tape as to why the proposal will be voted on," Dean Blandino said.