Postpublished at 76 mins
Chelsea 3-1 Paris FC
Sophie Ingle takes the captain's armband for Chelsea after that change.
Use audio icon at the top of page to listen to BBC Radio 5 Live commentary
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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Adam Millington
Chelsea 3-1 Paris FC
Sophie Ingle takes the captain's armband for Chelsea after that change.
Chelsea 3-1 Paris FC
Emma Sanders
BBC Sport at Stamford Bridge
A standing ovation inside Stamford Bridge for Sam Kerr. A hat-trick and job done surely?
Chelsea 3-1 Paris FC
Sam Kerr will have to settle for just the three goals tonight.
She's replaced by Mia Fishel.
Lauren James also goes off, with Eve Perisset coming on.
Chelsea 3-1 Paris FC
Paris FC are just taking their time now and are trying to pass the ball forwards.
Is there any chance for some late drama?
Chelsea 3-1 Paris FC
Gilly Flaherty
Former Chelsea and England defender on BBC Radio 5 Live
Erin Cuthbert has taken quite the whack to the head there.
You hope for Chelsea and Scotland that she is fine and able to continue, but you can't be too careful in these situations.
The medics will take their time to assess her.
Chelsea 3-1 Paris FC
Erin Cuthbert has quite the black eye after that collision.
She's on the touchline ready to come on, though.
Chelsea 3-1 Paris FC
Emma Sanders
BBC Sport at Stamford Bridge
Emma Hayes is using the break in play to chat through a few things with Sam Kerr and Lauren James.
Erin Cuthbert is given a healthy round of applause from the home fans as she jumps back to her feet and downs some water.
Chelsea 3-1 Paris FC
Paris FC make another substitution, and this one feels odd.
Alsu Abdullina is playing at Stamford Bridge, but she's a visiting player.
The Russian defender is on loan at Paris FC from Chelsea. She replaces Lou Bogaert.
Chelsea 3-1 Paris FC
That looked quite painful. Erin Cuthbert is down after taking an elbow to the head.
Chelsea 3-1 Paris FC
Tanya Oxtoby
Northern Ireland manager on BBC Radio 5 Sports Extra
Fran Kirby has made a massive difference to Chelsea in this second half.
The confidence that Chelsea have playing through the middle now when she combines with Sam Kerr is noticeably improved, much better link up play in there.
Chelsea 3-1 Paris FC
Emma Sanders
BBC Sport at Stamford Bridge
Fran Kirby.
Wow. That pass was perfect.
Chelsea 3-1 Paris FC
Argh!
That was a great move. Johanna Rytting Kaneryd breaks free and plays a pass to Fran Kirby.
She spins a wonderful pass towards Sam Kerr, but the forward can't hit the target.
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Sam: Don't celebrate yet!! Paris FC loves the scoreline 3-3 in the champs.
That was Paris FC's scoreline in the first leg against Wolfsburg.
Chelsea 3-1 Paris FC
Gilly Flaherty
Former Chelsea and England defender on BBC Radio 5 Live
It's a huge chance.
Fleury comes to the edge of the box and Lawrence goes the other way, the Chelsea defender just loses her.
The Paris forward has to hit the target there, on the penalty spot, unopposed.
Chelsea 3-1 Paris FC
How did Louise Fleury not do better there?
She's just been introduced to the pitch and is found in the centre of the Chelsea box, but she blasts her shot over the crossbar.
Chelsea 3-1 Paris FC
Close! Erin Cuthbert turns on the edge of the area and unleashes a shot towards goal but it ends up on the roof of the net.
Chelsea 3-1 Paris FC
It's Paris FC's turn to look to the bench now.
Louise Fleury and Margaux Le Mouel replace Mathilde Bourdieu and Kaja Korosec.
Chelsea 3-1 Paris FC
Lauren James isn't happy. The referee stops play after a tussle with Gaetane Thiney.
Chelsea 3-1 Paris FC
Emma Hayes turns to her bench.
Wales international and the Women's Super League record appearance maker Sophie Ingle replaces Sjoeke Nusken.
Chelsea 3-1 Paris FC
Nothing comes of that corner, though, as Chiamaka Nnadozie races out to punch Erin Cuthbert's delivery away from danger.