Newcastle defender Isaac Hayden hit out at the match officials following their controversial 1-0 defeat at Chelsea.
Manager Eddie Howe and his players were fuming after their nine-game unbeaten run was ended by Kai Havertz's 89th-minute winner.
The Chelsea forward was fortunate to still be on the pitch after appearing to catch Newcastle defender Dan Burn in the head with his elbow earlier in the game.
Newcastle were also unhappy after being denied a penalty when Trevoh Chalobah grabbed Jacob Murphy's shirt and brought him down.