Diego Costa found the net on his Chelsea debut as they came from behind to beat Slovenian side Olimpija Ljubljana 2-1.
Kurt Zouma has claimed that he turned down Manchester United to join Chelsea.
Keep up to date with all the last-minute deals completed on Transfer Deadline Day.
Will Kurt Zouma be a hit at Chelsea? Read our assessment and offer your own verdict here.
Chelsea have confirmed the signing of teenage defender Kurt Zouma from Saint-Etienne.
Sky sources understand that Chelsea are close to completing the signing of Kurt Zouma from St Etienne.
In-demand St Etienne defender Kurt Zouma claims he has been contacted by Chelsea manager Jose Mourinho.
St Etienne starlet Kurt Zouma will not play again until 2014 after being handed a 10-match ban.
France head coach Didier Deschamps has handed a late call-up to 18-year-old St Etienne defender Kurt Zouma.
Kurt Zouma has ruled out a summer switch by committing himself to St Etienne for at least another year.
The Summer Scout eyes French defender Kurt Zouma, spotted at the Under-20 World Cup.
Wolfsburg general manager Klaus Allofs has conceded that the German side are not signing St Etienne defender Kurt Zouma.
Pete Hall picks out the players who starred in the FIFA Under-20 World Cup in Turkey.
Wolfsburg are weighing up a bid for St Etienne defender Kurt Zouma, according to general manager Klaus Allofs.
St Etienne's Kurt Zouma says he is flattered by reports linking him with a move to Chelsea.
St Etienne starlet Kurt Zouma admits the club will decide his future, amid claims that Anzhi are set to finalise a deal.
Reported Premier League target Kurt Zouma intends to stay at St Etienne for at least another year before moving.
Kurt Zouma has brought an end to speculation surrounding his future by signing a new contract at St Etienne.
St Etienne youngster Kurt Zouma is reportedly attracting interest from QPR but the French club insist he will not come cheap.
Highly-rated defender Kurt Zouma has ended speculation surrounding his future by penning a contract extension at St Etienne.