Vikings linebacker Antwione Williams was flagged for a roughing the passer after sacking Jaguars quarterback Cody Kessler. The play is receiving a ton of attention and not because of how hard the QB was hit, the exact opposite.
It looks like your run of the mill sack of the quarterback, but not in today's NFL. This play was flagged for roughing the passer.
Let's hope the NFL fixes some of these things following the preseason. If these kinds of calls make it into the regular season then football might be officially ruined.