Graham Potter's return to Brighton & Hove Albion turned into a nightmare when he suffered his first defeat since taking charge of Chelsea in a 4-1 loss in the Premier League on Saturday.
The hosts made a blistering start at the Amex Stadium against Potter's bewildered side, racing into the lead inside five minutes through a well-taken Leandro Trossard goal. Breathless Brighton kept coming and soon had a quickfire second after Ruben Loftus-Cheek diverted a corner into his own net, with another own goal from Trevoh Chalobah making it three for Brighton three minutes before the interval.
Chelsea started well after the break and got back in it three minutes into the second half through Kai Havertz's header, but the damage had already been done and Potter's team could not rouse a comeback. Pascal Gross's last-gasp fourth goal capped a fine afternoon for Potter's successor Roberto De Zerbi, with the first win of his reign moving Brighton up to seventh in the standings, while Chelsea stay fifth, eight points behind leaders Manchester City.
