Referee Bill Vinovich was spotted having a conversation with Bills quarterback Josh Allen following a controversial non-call.

Lamar Jackson and the Ravens made things interesting, but Buffalo's defense held on to give the Bills a victory in Sunday's AFC divisional round matchup.

During the commercial break after the field goal, referee Bill Vinovich then went to the sideline and CBS cameras caught him appearing to apologize to Allen. Check it out: Bill Vinovich and Josh Allen having a chat pic.twitter.com/2LFbSXo6ua

When the NFL announced its officiating assignments for the weekend’s wild-card round games, Bills fans were notably upset to see that Bill Vinovich’s crew was tabbed to work Buffalo’s game against the Broncos.

Oddsmakers have set them as just 1.5-point underdogs to win the AFC title game, and Allen and company did beat the Chiefs in the regular season. Allen's playoff record as an underdog (1-3, 0-3 on the road) is concerning, but the Bills did technically upset the Ravens on Sunday.

Officiating a game in the NFL is a pretty difficult job, as the players are so big and fast that it's hard to truly catch everything that's happening.

The Bills held on for a thrilling 27-25 win over the Ravens to advance to the AFC Championship Game. Here's how Sal Maiorana graded their performance.

I missed this live because I was tweeting. But CBS caught head ref Bill Vinovich going all the way to the Buffalo bench to apologize to Josh Allen for the missed holding call in the end zone???

Josh Allen and the Bills' run game got whatever they wanted against the Broncos' defense on Sunday, as Buffalo advanced to face Baltimore in next week's divisional round.

Josh Allen got the win and a warning from referee Bill Vinovich on Sunday in Buffalo's wild-card win over the Denver Broncos.

Referee Bill Vinovich was seen talking with Bills quarterback Josh Allen after a possession in Buffalo's NFL playoff game against Denver.