Crystal Palace manager Patrick Vieira was fuming at the referees after Sunday's loss to Liverpool.
The Reds won 3-1 at Selhurst Park but Vieira thinks the hosts were treated unfairly.
The Frenchman was particularly annoyed with a late penalty awarded to Liverpool after a soft foul on Diogo Jota and Roberto Firmino being offside for Alex Oxlade-Chamberlain's goal.
He said: "[Oxlade-Chamberlain's] goal shouldn't have been allowed. The penalty shouldn't be allowed. So all I can do is give you my frustration. I prefer not to go too far because I don't want to be in trouble."
On the penalty, Vieira added: "I strongly believe it was a huge mistake from the referee. That took away our hope to try and get the points. That decision had a massive impact on the game today. You have to look at the performances of the referees. I'm always honest about referees but today the referees didn't have a good game at all. It happens too often at home when we play the big teams.
"The reason is having those meetings with the referee and explaining to coaches that contact is part of the game, so that if there is a situation like that and there is not an obvious contact, there will not be a penalty.
"This one here and when you look at the situation with Jota, who I believe was really quite smart, but at the same the referee was naive or the VAR I should say was naive.
"There is no way that Jota could get the ball back and score or that Vince tried to stop. There is no way Vince and Jota cannot have contact because of the situation they were in."
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