Both O'neil and Brady went up to contest a high ball against Chelsea footballer Willian.
Resulting in the two Norwich footballers colliding heads mid-air. O'Neil has sustained a nasty head gash and Brady has lost two teeth and had a mouth full of blood.
A painful night for Norwich.
— BBC Sport (@BBCSport) March 1, 2016
Robbie Brady loses two teeth in a collision with Gary O'Neil https://t.co/ZWJ37xG6dW pic.twitter.com/M14TDK7a32