In his three appearances for Manchester United, Casemiro has struggled.
against Crystal Palace, a red card
Defeated against Liverpool 7-0
against Southampton, a red card.
The Brazilian would appreciate the teammates' patience as he served his second straight red card of the season, which landed him a four-match suspension. But times have changed because the Premier League is a top league with fierce competition, and we now expect the best from the players. He never recorded a straight red for Real Madrid.
Concerning the red card that was given casimiro in Manchester United match against Southampton. I strongly advise the management of Manchester United to appeal that red card because it is not deserving. Most times I question the officiating ability of the English Premier League referees. Especially when they would refuse to make use of the VAR even when there is an obvious need to use the electronic device.
Meanwhile Manchester United need to find a way to start playing well, even without their talisman midfielder in the pitch. If not, they will keep dropping points.