As the season speeds to a close, the NFL starts to rely more on its best officiating teams. That will be no different during both the AFC and NFC championship games, as the league has assigned two of its most dependable referees to oversee the action.

The Denver Broncos' win over the Buffalo Bills didn't come without drama. After the game, a referee had to explain some calls.

Buffalo Bills head coach Sean McDermott voiced frustration with officials after a disputed overtime call against the Denver Broncos sealed Buffalo’s heartbreaking playoff exit.

Broncos defensive back Ja'Quan McMillian's controversial interception proved pivotal in sending Denver to the AFC title game.

NFL referee Carl Cheffers said replay confirmed Ja'Quan McMillian's interception on the pass intended for Brandin Cooks.

In a pool interview, referee Carl Cheffers for the Bills vs. Broncos divisional game explained the controversial interception.

FOX Sports NFL rules analyst Dean Blandino joins Yahoo Sports' Jason Fitz and Caroline Fenton to discuss the fallout from the controversial call late in the Broncos 33-30 win over the Bills. Watch the full episode of Yahoo Sports Daily on YouTube or YahooSports.

Officials in the Bills-Broncos game sparked controversy after ruling a late Josh Allen pass an interception instead of a catch.