Erik ten Hag has criticised the consistency of referees after Casemiro was sent off during Manchester United's 2-1 victory over Crystal Palace at Old Trafford on Saturday.
Casemiro will now miss the next three Premier League games for the Red Devils, including both of the upcoming fixtures against Leeds United.
The Brazilian international was involved in a heated melee between both sets of players after Jeffrey Schlupp pushed Anthony into the advertising hoardings.
Casemiro was pictured grabbing Crystal Palace midfielder Will Hughes by the scruff of the neck, and was given his early marching orders by Andre Mariner following a VAR review.
However, Jordan Ayew was also spotted grabbing Fred by the neck amidst the chaos, which is something Ten Hag alluded to after the game.
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Ten Hag believes that Casemiro was not the only player that crossed the line, and insists that Ayew should've seen red.
"Definitely [Ayew should've been sent off]," Ten Hag told BBC Match of the Day. "I see two teams fighting each other.
"I see two teams where several players crossed the line and one player is picked out and gets sent off. For me that's not right. When you freeze, Casemiro has crossed the line. But many more players are crossing the line. It's about consistency."
Casemiro has been key to Man United's improvement under Ten Hag since his arrival from reigning UEFA Champions League winners Real Madrid in the summer.
But the 30-year-old will serve his second suspension in quick succession after serving a one-match ban during Man United's 3-2 defeat at Arsenal in January.
Jesse Marsch's side will travel to Old Trafford on Wednesday, before welcoming the Red Devils to Elland Road next Sunday.
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