Red cards for Gary Cahill and Cesc Fabregas helped the Clarets on their way to victory, going three goals up in the opening 45 minutes.
Cahill’s red card came after just 14 minutes, with Sam Vokes opening the scoring shortly afterwards. Stephen Ward and Vokes’ put the game beyond Chelsea.
Alvaro Morata and David Luiz scored in the second half, but it was not enough to turn the game around.
Here’s how the new arrivals fared at Stamford Bridge…
A goal early after his introduction made for the perfect start to life in the Premier League. He reinvigorated the Chelsea team as he came off the bench and was unfortunate not to score a late equaliser. HIT
A day to forget. Lost his captain, his team lost their shape, their heads and their discipline. Harsh to judge him on this shambles. He’ll have better days for sure. MISS
The 20-year-old Ivory Coast midfielder can count himself so unlucky to have had his day cut short. He was replaced by Andreas Christensen when Cahill was sent off. JURY’S OUT
On as a first-half sub in place of Boga when Cahill taken off. All over the place at first as Burnley ran riot. Better in the second half and unlucky not to be involved in a goal for 2-3. MISS
Not enough time to make his mark as a late replacement for Christiansen as Chelsea chased the game late on. JURY’S OUT
Boss: Antonio Conte
At times he smiled ruefully to himself on the touchline as his summer nightmare continued. A stretched squad, Eden Hazard and Pedro injured and now both Gary Cahill and Cesc Fabregas suspended for Tottenham away next week. Make no mistake, this is a crisis for the Italian. Yes, he needs more signings. But now he needs his team to rediscover their backbone.
Disciplined in midfield, intelligent on the ball and an all-round performance to justify the £10million spent to take him to Turf Moor from Swansea this summer. Dug in during the second half as Chelsea rallied and never stopped working. HIT
A late second-half substitute as Sean Dyche battled to preserve Burnley’s lead. His experience vital as a calming influence as his new team strove to see the game out. JURY’S OUT
Boss: Sean Dyche
Shirt and tie on the touchline. Could have been sitting in an armchair with a cigar. His side’s poor away record from last season was a thing of the past here as the Champions imploded and Burnley cashed in. It is a confidence boost that will do them the power of good as they recover from losing Michael Keane and Andre Gray.