Graham Potter endured a nightmare return to Amex Stadium as Brighton thrashed Chelsea to claim a first victory under their new manager Roberto de Zerbi.
In a chaotic opening, Leandro Trossard’s calm finish put the home side in front after Thiago Silva – who had already produced two goalline clearances to deny the Seagulls – surrendered possession cheaply in his own half.
Two own goals extended Brighton’s lead before the break, Ruben Loftus-Cheek putting through his own net from a Solly March corner before Trevoh Chalobah slid Pervis Estupinan’s low cross past Kepa Arrizabalaga.