Brighton have handed their former manager Graham Potter his first defeat as head coach of Chelsea following a 4-1 win over The Blues at the Falmer Stadium.
Chelsea were unbeaten since Potter took charge at Stamford Bridge in September, after former manager Thomas Tuchel was sacked but Potter was unable to overcome his former side.
After Thiago denied Brighton twice from taking the lead in the first four minutes of the encounter, Leandro Trossard finally broke the deadlock for the hosts barely a minute later.
Ruben Loftus-Cheek and Trevoh Chalobah would both later score own goals to give Brighton a 3-nil first half win in the eventful evening.
Kai Havertz pulled one back for Chelsea to reduce the deficit before Pascal Groß extended the lead back to three with a goal in the added time, as Brighton walked away with an impressive 4-1 victory
The defeat is Chelsea’s first loss since the appointment of Potter in September, while the win is Brighton’s first win under new manager Roberto De Zerbi.
Chelsea have now dropped down to fifth position on the Premier League table, replaced by Newcastle United, who won 4-0 against Aston Villa.