Kadarius Toney did NOT check whether he was offside before controversial play at the end of Chiefs' defeat by Bills, admits Andy Reid - who labelled the decision 'embarrassing'

Andy Reid has admitted Kadarius Toney did not check with the officials whether or not he was offside before the controversial play that saw the Bills beat the Chiefs on Sunday.

Toney thought he had given the Chiefs a potentially decisive lead in the fourth quarter at Arrowhead Stadium but his touchdown was brought back for a penalty.

The referees spotted that the receiver was stood offside before the snap and replays clearly showed it was the correct decision.

The flag led to furious scenes among the Chiefs on the sideline with quarterback Patrick Mahomes screaming at officials and throwing his helmet. 

Reid also called the decision 'embarrassing'. Much of the Chiefs' anger was thought to be because the officials had not warned them about a possible offensive offside.

But referee Carl Cheffers said Toney was so far offside that he was 'blocking our view of the ball' and admitted he would have given the Chiefs advice on their positioning if they had asked for it. 

However, Reid has now confirmed that his players didn't.

Speaking on Monday, Reid said: 'Normally he (Toney) just looks over to the sideline and gets an okay and on that one he just happened not to. 

'So that would be the coaching point. Just make sure you check with the guy on the side just to see if you're aligned. 

'He's not lining offsides on purpose. Listen, he was two inches or an inch away from being legal.

'You can argue both sides of it for both teams. I guess the league is trying to clean that up.'

After the game on Sunday, Cheffers said: 'Yes, ultimately, if they looked for alignment advice, certainly we are going to give it to them.

'But ultimately, they are responsible for wherever they line up.

'And, certainly, no warning is required, especially if they are lined up so far offsides where they're actually blocking our view of the ball. 

'So, we would give them some sort of a warning if it was anywhere close, but this particular one is beyond a warning.'

The NFL is now set to review Mahomes' meltdown after he questioned the officials and criticized them in a fit of rage in front of the cameras.

The Chiefs quarterback was enraged by a controversial call that saw the Chiefs lose 20-17 to the Bills - their third defeat in their last four games.

NFL.com insider Ian Rapoport posted on X on Monday morning: 'While Patrick Mahomes' post-game comments will be reviewed, his on-field yelling aimed at the refs before the game ended and then on-field comments while cameras were rolling and present may be more of an issue.'

When Mahomes returned to the sideline, he slammed down his helmet and had to be restrained by teammates as he appeared to yell at a referee, 'We played our f***ing a**es off and you call offensive offsides!'

His fury then spilled over onto the pitch as he embraced rival quarterback Josh Allen after the game had ended.

'Wildest f***ing call I've ever seen,' said Mahomes as he shook his head in disgust.

'F***ing terrible,' he added. 

Mahomes then added further fuel to the fire in his postgame media conference.

He added: 'It's tough to swallow. Not only from me, and football in general, to take away greatness like that, for a guy like Travis to make a play like that, you want to see the guys on the field decide the game.

'They're human. They make mistakes. But every week, we're talking about something... It's the call. Just in that moment. Not for myself. 

'To have a flag change the outcome of the game. I've never had offensive offsides called. If it does, they warn you. There wasn't a warning the entire game.

'And then you make a call like that in the final minute? Another game, we're talking about the refs. 

'It's not what we want for the NFL. It's not what we want for football.'

The NFL has a long-standing policy against players and coaches calling the integrity of referees into question.