From Fernando Torres and Romelu Lukaku to Falcao and Gonzalo Higuain. The Chelsea number 9 shirt has not been kind to its owners, can new signing Pierre-Emerick Aubameyang break the curse?
Chelsea signed Barcelona forward Pierre-Emerick Aubameyang in a £10.3 million (12 million euro) deal on Thursday as the club's incredible transfer window spending went over £240 million.
Watch as Chelsea have already put new signing Wesley Fofana through his paces at Cobham training ground following his £75 million move from Leicester City.
Watch as Chelsea unveil Wesley Fofana after he completed £75 million move from Premer League rivals Leicester City.
Chelsea have agreed a deal to sign France Under-21 international central defender Wesley Fofana from Leicester City, the two clubs announced on Wednesday.
Thomas Tuchel urged "soft" Chelsea to toughen up after a shock 2-1 defeat against Southampton plunged his spluttering team into Premier League turmoil on Tuesday.
Catch up with the highlights from Tuesday evening’s Premier League action which saw Chelsea suffer their second loss of the season, while Everton were denied their first win in a draw with Leeds.
Chelsea suffered a shock 2-1 defeat against Southampton which further plunged Thoms Tuchel's spluttering team into Premier League turmoil on Tuesday.
Watch as Raheem Sterling scored a brace to inspire Chelsea to a dramatic 2-1 victory over Leicester City at Stamford Bridge on Saturday afternoon.
Liverpool equalled the Premier League's record win with a 9-0 demolition of Bournemouth, while Erling Haaland's hat-trick inspired Manchester City's comeback 4-2 victory against Crystal Palace on Saturday.