Senegalese international Sadio Mane netted a brace as Kepa Arrizabalaga commits another blunder in a 2-0 victory for Liverpool, as Andreas Christensen was sent off.
Mane wins the man of the match as his two goals gave the Premier League Champions three points at Stamford Bridge.
Chelsea were reduce to ten men in the injury time of the first half as Andreas Christensen brought down Mane and was sent off by referee Paul Tierney, who changed his initial decision to book the defender after a VAR review.
Mane put the Reds ahead five minute into the second half, before capitalizing on Kepa’s calamitous error to give Liverpool the second goal in the 54th minutes.
Liverpool were the first reigning champions to win away at Chelsea in the Premier League since Manchester United in April 2002, with the blues haven gone unbeaten in the 13 subsequent such matches before Sunday (W7 D6)
Chelsea have both had a player sent off and missed a penalty in the Premier League for the first time since February 1999 against Black burn Rovers, when Gianluca Vialla was sent off Frank Lebeouf missed from the spot.