Hello and welcome to our live coverage of Chelsea’s Premier League opener against Swansea. The big team news is the inclusion of Diego Costa from the start, despite those fears about his hamstring injury.

Crafty.

Cork replaces Ki

Ki almost finds Gomis with a run down the middle, and Ki pulls up as he does so, clasping his thigh.

A chance for Swansea from a couple of minutes ago.

Montero gets to the byline, using close control and strength to get there, but his cross is hooked away by Cahill.

Costa takes on Williams with a run into the box, and Williams' lunge concedes a corner without risking a penalty. Oscar takes, and Gomis heads away at the near post.

Fabianski claws away a ball from Costa as he shoots from a ridiculously tight angle, near the touchline.

Sigurdsson faces the goal, tries to twist away from the central defence, and gets the ball trapped under his feet.

GOAL! Chelsea 2-1 Swansea. Willian scores - Willian takes on Hernandez just inside the box, and he stands up a cross, but it clips off Hernandez's leg and loops over Fabianksi and into the net.

GOAL! Chelsea 1-1 Swansea. Ayew scores - A cross comes in from Montero for Gomis, and he pulls off a wonderful save, tipping it away. Ayew reacts first, and Cahill and Terry both block. Ayew gets back up, neatly makes room for himself and then puts a second effort in the corner from close range.

Gomis wins a throw on the right wing, and Courtois manages to claim a low cross.

Costa lays the ball off to Fabregas in the back, and a pointless backheel flick strikes Williams, and Swansea break down the left.

Swansea just about manage to scramble a corner clear, and Cahill manages to fall over in the process. The best league in the world, as the joke goes.

GOAL! Chelsea 1-0 Swansea. Oscar scores - He takes a free kick from the left-hand corner of the penalty area, whips it into the six yard box at waist height, and although none of the onrushing players get a touch, it squeezes in at the far post.

Ayew gets a forearm from Cahill as they challenge for the ball. It looks accidental, and he's not so hurt he won't soon be back on the pitch after leaving.

Oscar is tripped by Ki, and as Willian is tackled by Taylor, the ref awards a free kick for the first challenge, on the corner of the box, on the right hand side. It's whipped between defence and 'keeper, but it's out of play.

Shelvey goes through the back of Oscar for no reason, and is then booked for that reason.

Matic has a shot from distance which loops off Williams, and Fabianski adjusts well to pick it out of the air and prevent a corner.

Here's some expert analysis from Alan "Ben McAleer" Shearer.

Costa is absolutely cleaned out by Fernandez with a run into the box, and it initially looks like a certain penalty, but from another angle he might just have clipped the ball to concede a corner.

Shelvey's through ball is well measured for Gomis's run, but instead of shooting first time, he cuts onto his left and scuffs an effort against a defender and the danger passes.