Sean Dyche angry over Dominic Calvert-Lewin's red card in FA Cup stalemate at Crystal Palace… and Everton boss says VAR needs to be 'cleaned up' after latest controversy

Everton boss Sean Dyche called for a VAR 'clean-up' after the controversial decision that saw Dominic Calvert-Lewin shown a straight red card late in the goalless FA Cup third round draw at Crystal Palace.

Nathaniel Clyne went down with a shudder after a sliding tackle from Calvert-Lewin, who appeared to catch the Palace defender's shin with his studs.

Referee Chris Kavanagh reviewed the incident on the on-pitch monitor and decided the contact was enough to dismiss the Toffees striker, who was sent off for the first time in his career.

Dyche said: “It seems a bit confused at the moment. I said the other day that we had another one, saying I don't know who is which referee. I'm a fan, (but) I definitely think we're all aware that there's some cleanup to be done.

'I thought it was being cleared up, and then it seems to have taken a step back. I remain a fan at this stage but it's starting to test even my patience as I look at the obvious offside situations which I think are fair, they should be there, some of the others I'm fine , what is the chance of being let go and what is the chance of being called, but we don't actually know that.'

Calvert-Lewin appeared to win the ball when he came on for Palace full-back Nathaniel Clyne

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Dyche had previously lamented the decision to turn to VAR at all, suggesting calls may have been inconsistent during the match after an Everton penalty went unanswered.

He told ITV: 'If you want to do everything in slow-mo, then you have to put everything in slow-mo – you can't just have it for one and for the other.

'There is a little contact at the end. In live time he doesn't give it his all, then you slow it down – and in slow-mo everything looks worse, we all know that.'

Dyche revealed he had not ruled out appealing the decision, saying: “I will check the process again.

“Again, it's one of those risk-and-reward things. Is it worth it, isn't it worth it. I don't think anyone knows what will happen next with these decisions.

“We'll see, we'll analyze it, we'll get an outside view and then we'll decide.”

Palace boss Roy Hodgson understood his colleague's frustration but did not criticize the decision to sack Calvert-Lewin.

Chris Kavanagh watched the footage and left Everton fans stunned with his decision

Everton boss Sean Dyche was left fuming over Calvert-Lewin's red card in the FA Cup stalemate

He said: “I mean Sean comes from a brand of football, grew up in a brand of football where these kinds of challenges were quite common and weren't punished when people got the ball.

'We live in a slightly different world now, I think, and that is if you take on challenges with a straight leg and you have a bit of intention behind it, then there is a risk.

“There was absolutely no malicious intent on Calvert-Lewin's part, there is no question of that, not when you look back, it's just a situation nowadays of an interpretation of a challenge, and the interpretation can unfortunately be that if you're honest… If you have legs and your foot is off the ground when you make a challenge, this can be considered a red card.

'Do I sympathize with him then? Yes I have.'