Ice-cold Palmer got his first Hattrick for Chelsea after striking a late deflected goal to send Chelsea away with three points against Manchester United.
Neither the Blues nor the Red Devils were in control of the ball, looking more like their disappointing records than their celebrated badges.
Erik ten Hag’s men appeared set for a famous victory after storming back from 2-0 down to lead 3-2 in a staggering game containing a combined 47 shots.
But a 100th minute penalty and a 111th minute goal destroyed that chances of qualifying for a Champions League spot.
Defeat for United leaves them 11 points off fourth-placed Aston Villa with just eight games to play and facing a season outside Europe’s elite club competition.
Chelsea came into the match without a win against Manchester United in 12 Premier League meetings but were ahead in just the fourth minute through captain Conor Gallagher. Palmer doubled Chelsea’s lead after scoring a 19th minute penalty.
The two goals within five minutes by Bruno Fernandes and Alejandro Garnacho leveled for Manchester United.
Garnacho got his brace after he headed home a pinpoint cross from Antony to put United ahead in the 67th minute. But just in the nick of time Chelsea got a lifeline when Diogo Dakota fouled Noni Madueke and the referee gave a penalty after a long VAR check.
As if it was not enough, Enzo sent a which corner to Palmer the next minute and he fired it home with the help of a deflection.