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Sam Kerr scores hat-trick - taps in James cross, Rytting Kaneryd cross and then lobs keeper
Sophie Ingle flicks in corner for Chelsea's fourth
Thea Greboval cancelled out opener with looping header from corner
Chelsea were held to 2-2 draw at Real Madrid in first game
Paris, who knocked Arsenal and Wolfsburg out in qualifiers, lost to Swedish side Hacken in opening game
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HT: Chelsea 1-1 Paris FC
What did you make of that first half?
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HT: Chelsea 1-1 Paris FC
Gilly Flaherty
Former Chelsea and England defender on BBC Radio 5 Live
It has been a quite frustrating performance so far.
For Chelsea the predictability is the issue. They are forcing a lot of balls and playing into Paris FC's hands by playing too centrally and attempting big passes which just give the ball away.
They are causing their own problems, giving the ball away too easily and too often.
HT: Chelsea 1-1 Paris FC
Emma Sanders
BBC Sport at Stamford Bridge
Emma Hayes was a few yards away from Niamh Charles when the whistle went for half-time but she didn't hang around to wait for her.
She went straight down the tunnel with a frown on her face and was quickly followed by assistant Denise Reddy.
Chelsea have been far from their best and given BK Hacken's victory over Real Madrid earlier, they really can't afford to drop further points.
Chelsea 1-1 Paris FC
It's all square at the break.
Chelsea 1-1 Paris FC
Ooh. Lauren James plays an inviting cross into the Paris FC box after Chelsea have a free-kick. Jessie Fleming manages to get a touch to it but it's bouncing and easily caught by the goalkeeper.
Chelsea 1-1 Paris FC
Tanya Oxtoby
Northern Ireland manager on BBC Radio 5 Sports Extra
You can see Emma Hayes is quite frustrated at the moment down there on the touchline.
There is too much predictability in their build up phase, there is not enough movement off the ball, not enough runs into the pockets - that is all part of Chelsea's DNA.
Chelsea 1-1 Paris FC
Lauren James is tracking back regularly tonight for Chelsea.
She drops in behind as Paris FC look to break and stops them created another attacking opportunity.
Chelsea 1-1 Paris FC
Emma Sanders
BBC Sport at Stamford Bridge
It's not a huge surprise. Chelsea haven't played particularly well and they've been inviting pressure from Paris FC, who are pressing high.
It's a looping header and Jess Carter is in position on the line but just misreads the flight of the ball and mistimes her jump.
She scored an own goal here at Stamford Bridge on Saturday in the 5-1 win over Liverpool but I think this one goes down as Thea Grevoval's.
Chelsea 1-1 Paris FC
Lauren James produces a tidy bit of footwork to work free of two Paris FC defenders, but Chelsea can't ignite an attack.
Chelsea 1-1 Paris FC
Gilly Flaherty
Former Chelsea and England defender on BBC Radio 5 Live
It's a big header from Greboval but for me Ann-Katrin Berger has to go for that.
You're the goalkeeper and can use your hands. Yes Jess Carter was stood on the line but she got up as high as she could with her head and still couldn't reach it.
A keeper has to take control of that situation there.
Thea Greboval (38 mins)
Image source, ReutersParis FC are level!
That's a poor goal for Chelsea to concede. Paris FC defender Thea Greboval loops a header towards the Chelsea goal after the visitors have a corner.
Jess Carter tries to head clear on the goal-line but can only send it into the roof of the net.
Chelsea 1-0 Paris FC
Gaetane Thiney plays a lovely backheeled pass towards Mathilde Bourdieu as Paris FC look to carve an opening, but it's blocked behind for a corner.
Chelsea 1-0 Paris FC
It's been end-to-end.
Paris FC take their turn to go forwards, with Clara Mateo leading the charge this time, but Jess Carter intercepts and clears for a throw-in.
Chelsea 1-0 Paris FC
Emma Sanders
BBC Sport at Stamford Bridge
Paris FC goalkeeper Chiamaka Nnadozie was one of those to light up the World Cup with Nigeria in the summer so we know she's a top, top shotstopper and she proved it then.
Even Emma Hayes was jumping up half-celebrating, expecting that to go in.
Chelsea 1-0 Paris FC
Image source, Getty ImagesHuge save!
Johanna Rytting Kaneryd makes the most of a miscued Paris FC pass and plays a one-two with Sam Kerr, but Chiamaka Nnadozie gets out quickly to send her effort behind.
Chelsea 1-0 Paris FC
Gilly Flaherty
Former Chelsea and England defender on BBC Radio 5 Live
Image source, ReutersTo be honest when James cut inside on her right foot I thought she was going to leather it!
Instead she produces an unbelievable ball for Sam Kerr, curls it into the back post inside the defender, and Kerr has the simple task to tap it in, which she does.
Chelsea 1-0 Paris FC
Chelsea are on the hunt for another. Erin Cuthbert plays the ball forward towards Sam Kerr, she lays it off for Lauren James, but it runs out of play before she can get to it.
Chelsea 1-0 Paris FC
Emma Sanders
BBC Sport at Stamford Bridge
Image source, Getty ImagesAnd there's the quality that Chelsea possess in abundance.
They've not been at their best so far but Lauren James suddenly produces a sublime pass and Sam Kerr has the intelligence to flick it past the goalkeeper.
"That's why we're champions," sings a Chelsea fan to our left.
Sam Kerr (31 mins)
Image source, Getty ImagesChelsea lead!
That's a well-worked goal to open the scoring. Lauren James is free on the left-hand side, cuts inside onto her right foot and drills a perfectly-timed ball towards the back post.
It's met by Sam Kerr, who coolly turns home.
Chelsea 0-0 Paris FC
Gilly Flaherty
Former Chelsea and England defender on BBC Radio 5 Live
Chelsea are killing their own game by turning the ball over in possession.
When a team plays such a high press against you it is better to try and turn them and use your pace. Chelsea have Kerr, Rytting-Kaneryd and James up top, put the ball over the top and stretch them. Then yo can play your possession game when they drop off.
They are playing into Paris FC's strengths at the moment.