Casemiro and another Man United player to blame for Crystal Palace opener 

Man United currently trail Crystal Palace after a well-taken goal by Michael Olise.

The Reds were caught napping in the 12th minute as Olise showed his brilliance to score. 

Two United players failed to track the Palace attacker. They are Christian Eriksen and Casemiro.

Casemiro, in particular, totally mistimed his tackle and left Andre Onana at Olise's mercy.

United ultimately lost 4-0.