The NFL had its share of controversy in Week 15, specifically over two rules likely to cause angst around the league.
One event occurred in front of a primetime audience Sunday night, as Oakland Raiders quarterback Derek Carr fumbled the football out of the end zone against the Dallas Cowboys, resulting in a touchback.
The other arrived in a late afternoon game when Pittsburgh Steelers tight end Jesse James' touchdown catch against the New England Patriots was overturned after officials ruled James "did not survive the ground" when crossing the goal line.
The touchback rule and persistent debates over what is a catch commanded the spotlight Sunday night and into Monday.