- Two goals from Sam Vokes and a wonder strike from Stephen Ward put Sean Dyche's side three goals up Stamford Bridge.
- The defending champions booed off at half-time having also lost captain Gary Cahill to a straight red card after just 15 minutes.
- Alvaro Morata and David Luiz pulled goals back in a second half where Cesc Fabregas was also given his marching orders for two bookable offences.
Three goals conceded. Two men sent off. All in all, Chelsea's defence of their Premier League crown could have gone better.
Full-time: Chelsea 2-3 Burnley
Full-time: West Brom 1-0 Bournemouth
Full-time: Everton 1-0 Stoke City
Full-time: Crystal Palace 0-3 Huddersfield Town
Four minutes of time added on at Stamford Bridge.
Burnley an inch from a fourth! Robbie Brady hits the post with a wicked free kick that had Courtois well beaten.
Surely not? David Luiz, now playing as a centre forward lashes home a low volley after a slick flick on by Morata. Three minutes plus added time to play.
Goal! Chelsea 2-3 Burnley (David Luiz, 87)
Chelsea have been rotten but Morata has provided a good account of himself during his cameo off the bench. His latest effort sees him ride a couple of challenges on the edge of the box before letting fly with a low effort, but a deflection guides it straight into Heaton's arms.
RED CARD – Cesc Fabregas (Chelsea)
Chelsea are down to nine! Fabregas, who was booked for sarcastically applauding the referee in the first-half, picks up another after a wild challenge on Cork. Both feet were off the ground, that looks like the right decision.
Burnley are slowing the game up and it's annoying the Chelsea players just a tad. David Luiz marches over to the referee to complain but he;s the one who walks away with his name in the book.
Goal! Crystal Palace 0-3 Huddersfield Town (Steve Mounie, 78)
15 minutes left for Chelsea to salvage something.
Morata has his debut goal! Willian twists and turns inside his man and whips an inviting ball into the Spaniard from the right. He's sprung clear from his man and meets the cross with a fine diving header to send it into the far corner. Burnley are appealing for offside but they won't get anything.
Goal! Chelsea 1-3 Burnley (Alvaro Morata, 68)
Crystal Palace are still trailing at home to Huddersfield and it very nearly just got worse had Timothy Fosu-Mensah not just saved them with a terrific last ditch tackle to stop a counter.
Might Matthew Lowton be on a wind up mission here?
Heaton denies Chelsea! Again it is Alonso who tests him from range, this time with wonderful free kick, but the Burnley goalkeeper springs across to bat it clear. From the resulting corner the Spanish full-back is again the one forcing the issue, taking a touch before cutely lifting the ball over Mee but his shot on goal his blocked and cleared.
It won't be two up top for Chelsea, Batshuayi is the one to make way for Morata.
A few changes of 'Diego! Diego!' are ringing around Stamford Bridge. He's not here today, but it looks like Alvaro Morata is preparing to come on.
Alonso is again as he decides to go on his own down the left before attempting to ping a ball across goal. It takes a wicked deflection off a Burnley defender that forces it towards goal but Heaton reacts well to scramble it away.
Chelsea have shown a bit more life in the opening stages of this half. It was impossible not to really; Tom Heaton has just produced a spectacular save to just about bat away a piledriver from 30 yards out struck by Alonso.
Chelsea are back out for the second half. No changes yet for Chelsea. Shockingly, none for Burnley either.
Burnley. Three up. At Stamford Bridge.