The funny thing, not for United or Casemiro, is Palace had been trying to bring off Will Hughes for Albert Sambi Lokonga.
Casemiro walks down the tunnel. Another United ban on the way. Three games probably.
Almost 3-0! Brentford have a few nibbles at it but Yoane Wissa's effort is cleared off the line!
Andre Marriner runs back and calls over Casemiro. And he shows him the red card.
Casemiro is sent off for choking Will Hughes.
James Maddison and Kelechi Iheanacho have done as much as anyone to give Leicester the lead here.