Manchester United's David de Gea has admitted Casemiro being unavailable to play Arsenal due to suspension is a 'big blow'.
Casemiro had picked up four yellow cards ahead of United's match against Crystal Palace on Wednesday night, but Erik ten Hag chose to start the defensive midfielder at Selhurst Park regardless, which meant he was at risk of picking up a suspension.
After a player receives five yellow cards in the Premier League, a one-match suspension is dished out and Casemiro was shown his fifth yellow of the season with just 10 minutes remaining against Palace following a late, tired challenge.