Sometimes a teammate and friend is your worst enemy. Say that to Eric Bailly after being kneed by Dean Henderson, totally fortuitous, to the neck.
The Manchester United goalkeeper came out to clear the ball in the box with his fist. He didn't care who was in front of him, whether it be Troost-Ekong of Watford or Bailly.
And the United CB came out worse off. The defender got kneed to the neck that left him concussed on the Old Trafford pitch.
It was in the final part of the first half. Bailly got up and went to the side of the pitch to be treated, but due to his situation, Solskjaer preferred not to force him as he still saw him concussed and brought on Maguire.