Tottenham boss Jose Mourinho criticised the video assistant referee despite his side beating 10-man Manchester City.
Spurs won the game 2-0 on Sunday to move up to fifth in the Premier League.
But Mourinho felt a number of decisions had gone against Tottenham before they took the lead, insisting Raheem Sterling should have been sent off for an early foul on Dele Alli.
"I thought I was going to love VAR the way I love goalline technology," said Mourinho.
"I love goalline technology because there is no mistake. The VAR has too many mistakes, too many.
"The game started immediately with the wrong decision. It's a red card, it's a direct red card to Sterling.
"I know that Mike Dean has a difficult job. He's on the pitch and it's 200 miles an hour. I wouldn't like to be a referee because it's so difficult.
"Sometimes I try in training sessions and I realise that it's too difficult. So for me Mike Dean, good performance. The problem is the VAR."
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