Arsenal should have been down to 10 men from the fifth minute and I'm amazed VAR Andre Marriner did not recommend to referee Lee Mason that David Luiz is shown red.
At the very least, Mason should have been advised to consult his pitch-side monitor.
Two weeks ago, everyone accepted Andreas Christensen deserved red for pulling back Liverpool's Sadio Mane, even though Chelsea's goalkeeper was close to the situation.
David Luiz was lucky to escape a red card after a pull on Sheffield United's Oliver Burke
Here, Oliver Burke looks to escape David Luiz, who is the last man and tugs on his shirt.