The roughing the passer penalty is one of the most controversial flags in football. Here's how the NFL defines it.

As Patrick Mahomes’s Chiefs host the Bills, Josh Allen has had more roughing-the-passer and unnecessary-roughness penalties ...

Saquon Barkley was all over the place for the Philadelphia Eagles in the first half of the NFC championship game against the ...

The NFL rolled out one of its lackeys to address some of the controversial calls made in the AFC Divisional Round game ...

The two made some minor contact at the end of the play, as a rushing defensive lineman and a quarterback are wont to do.

One of the quarterbacks in the Chiefs vs. Bills game is No. 1 among active players in receiving roughing the passer calls per game.

Kansas City was facing a 3rd-and-8 in their own territory when Mahomes threw an incomplete pass intended for Travis Kelce.

Last Saturday's Texans-Chiefs playoff game included a pair of controversial penalty flags thrown after hits applied to Chiefs ...

The Houston Texans entered Saturday's AFC Divisional Round game against the two-time defending Super Bowl  Kansas City Chiefs ...