LATROBE, Pa. _ The dynamic kickoff has been altered, the overtime procedure has been tweaked and the old-school chain gangs are being replaced.

Those and other changes in NFL protocol were topics of discussion when NFL referee Craig Wrolstad and members of his crew visited Saint Vincent College last weekend, as was the expansion of replay assist.

Beginning this season, penalty flags thrown for grabbing the face mask, a horse-collar tackle, tripping or hits to the head can be picked up in the event replay assist is presented with clear and obvious evidence no illegal contact was made.

"Replay assist is not putting the flag on the field at all, and that is very, very important," an accompanying video emphasized.

Wrolstad elaborated on his understanding as to why that's the case.

"The co

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