Casemiro was the unlikely hero for a Cristiano Ronaldo-less Manchester United at Stamford Bridge after crashing home a stoppage-time equaliser for the Red Devils.
The Brazil international scored his first goal for his new club in a 1-1 draw that keeps Erik ten Hag's side a point behind the Blues in the Premier League table.
It could have been worse for the visitors who went 1-0 down in the 87th minute when Jorginho scored from the penalty spot after substitute Scott McTominay had clumsily fouled Armando Broja.
There was no Ronaldo to rescue United this time, with the forward dropped from the squad, so instead it was left to his former Real Madrid team-mate to save the day with a looping header that even an in-form Kepa couldn't keep out.