The video assistant referee "didn't get it right" in Chelsea's 2-0 home loss to Manchester United and it was "soul destroying" for the supporters, says Blues boss Frank Lampard.
VAR official Chris Kavanagh did not feel Harry Maguire deserved a red card for appearing to kick Michy Batshuayi.
21 minutes: Maguire and Batshuayi tangled near the touchline, leaving the United defender on the ground. As the Chelsea striker fell towards him, the England international appeared to kick out at the Belgium forward.
Lampard: "I've seen it again and VAR is there for that and they didn't get it right. Harry Maguire should have been sent off, that's clear, and that obviously changes the game."
United boss Ole Gunnar Solskjaer: "Was Harry Maguire lucky? I don't think so. He was fouled first and Batshuayi was going to fall on top of him so he put his leg out and hit him where it hurts."
Maguire: "I know I caught him and I felt he was going to fall on me and my natural reaction was to straighten my leg to stop him. It wasn't a kick out and there was no intent. I think it's the right decision. I apologised to him and it was nice that the referee saw sense."
56 minutes: Chelsea get a corner which defender Kurt Zouma directs into the net, but United claim a foul on Brandon Williams. Williams was indeed pushed by Cesar Azpilicueta, but only after the Chelsea skipper himself had been shoved by Fred. The goal is ruled out.
Former Chelsea striker Chris Sutton on BBC Radio 5 Live: "That's a big call. Fred shoves Azpilicueta into Williams - the goal should stand. That's ridiculous. Wow. You have to question what Stockley Park are seeing there.
"They want their heads banging together. I'm bamboozled by that decision. Fred was the instigator in all this."
Azpilicueta: "Of course, for Zouma's goal I pushed Williams but I was pushed. At least go to the monitor - it takes 30 seconds. The referee on the pitch has to be the one to take the decisions.
"My intention when I ran to the front post was not to push Williams. I'm not saying the push from Fred was a penalty but my push is a consequence of his push."
Lampard: "Azpilicueta gets a shove in the back - it's not clear, it's not obvious, Azpi has been pushed in the back."
Solskjaer: "I didn't see a foul by Fred for the disallowed goal."