Brighton came from a goal down to beat a not too disciplined Chelsea team, who had a player sent off for the second Saturday running.
Substitutes Danny Welbeck and Maxim de Cuyper scored during 11 minutes of added time as the visitors gained from
a 53rd-minute red card shown to
Trevoh Chalobah.
Chelsea seemed to be coasting to victory in the first half when Enzo Fernandez headed in Reece James’s cross, through a deflection off Brighton winger Kaoru Mitoma.
However, Mitoma played a key role in the game’s big turning point , as he won possession from Chelsea’s Andrey Santos, on his first Premier League start, leading to Chalobah’s desperate challenge on Georginio Rutter.
After a lengthy video assistant referee review, Chalobah was sent off, a week after goalkeeper Robert Sanchez was dismissed early in their 2-1 defeat at Manchester United.
And Welbeck gained by scoring twice , getting his first, by heading in the equaliser at the far post in the 77th minute.
De Cuyper headed Brighton in front from a corner in the second minute of injury time , before Welbeck scored from close range to cement victory in the ninth minute of stoppage time
Chelsea, who drop to seventh place, left the field to a smattering of boos. They have not won a Premier League match since the international break, with Liverpool next to visit west London.
On the other hand, Brighton move into 10th spot after a positive outcome against big six opposition.
