Chelsea cruised to victory with a 3-1 win against Vitesse on Wednesday evening.
Mohamed Salah opened the scoring after just four minutes when the Egyptian tapped in from eight yards after some good work from Diego Costa, who gave his teammate the simple task of scoring from close range.
Jose Mourinho's side doubled their lead before the half-hour mark when new signing Cesc Fabregas curled home a free kick from around 25 yards out.
Zakaria Labyad came the closest to getting his side back into it after the restart when his long-range effort rattled the cross bar, but with 15 minutes left, the Blues all but wrapped up the result.
Costa was once again in the thick of the action and the powerful forward held off a challenge before laying the ball to Nemanja Matic, who smashed an effort into the roof of an empty net.
Uros Djurdjevic reduced the deficit in the closing moments for the Dutch side.