Chelsea kicked off their pre-season preparations with a 5-0 win over Wycombe Wanderers on Wednesday evening.
Patrick Bamford, who enjoyed a successful loan spell with Derby County last season, opened the scoring on 21 minutes with a powerful effort from close range.
Izzy Brown doubled the lead three minutes after the restart with his first of the evening, before John Terry side-footed home moments later.
Branislav Ivanovic made it four on 67 minutes when he headed home in emphatic style before Brown grabbed his second of the night late on with a curling effort from outside the box.
