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First women's event at Queen's since 1973
NOW: Sonay Kartal 6-1 3-6 Daria Kasatkina
NOW: Emma Raducanu and Katie Boulter into second round of women's doubles
Coming up: Jodie Burrage and Karolina Muchova
Earlier: Beatriz Haddad Maia beats Petra Kvitova 2-6 6-4 6-4
*Kartal 6-1 3-6 1-1 Kasatkina
Who will blink first in this final set?
Daria Kasatkina races into a 40-0 lead on serve but a free-hitting Sonay Kartal battles back, blasting in a return before Kasatkina drops a double fault for deuce.
But the Australian resets to get over the line.
Kartal 6-1 3-6 1-0 Kasatkina*
A good game for Sonay Kartal as she ends the run of games against her to make a positive start to the third set.
Jiang/Wu 4-6 2-6 Boulter/Raducanu
Here's how Emma Raducanu and Katie Boulter clinched their straight-set victory in their doubles opener a short while ago.
Smiles, hugs and lots of applause on court one. They were very popular winners this afternoon.
Boulter and Radacanu through to second round after straight sets victory
*Kartal 6-1 3-6 0-0 Kasatkina
Daria Kasatkina holds her nerve to land the second set and take us to a decider on Andy Murray Arena.
It had all been going very smoothly for Sonay Kartal, but now she has a real fight on her hands to reach round two.
Kartal 6-1 3-5 Kasatkina*
A first real tight spot for Sonay Kartal to try and work her way out of here. The Briton frames a shot out of the court to hand over three break points...
That's into the net, though, and that first blip from Kartal gifts Daria Kasatkina the chance to serve for the set. How quickly the momentum can swing.
*Kartal 6-1 3-4 Kasatkina
It's a much more level contest now and Daria Kasatkina has cut out the unforced errors - especially on serve - to give herself a platform here. The world number 16 boxes off another game from 30-30 to edge back in front.
Kartal 6-1 3-3 Kasatkina*
Sonay Kartal keeps herself on course for victory with another hold. She's been rock solid so far and, if she can keep this up, is on track for a huge win.
But, if yesterday taught us anything... Let's not get too far ahead of ourselves yet.
*Kartal 6-1 2-3 Kasatkina
Sonay Kartal punishes a serve with a devastating return, but can't apply any further pressure in Daria Kasatkina's latest game. A comfortable hold for the improving Australian as she searches for a way back into the match.
Kartal 6-1 2-2 Kasatkina*
Signs now that Daria Kasatkina has, after a slow start, begun to find her range.
The Australian produces a fine winner to set up her first break point of the set but is then left frustrated as, in her attempt to seal the deal, she sees a shot catch the net cord and bounce out.
It's all the encouragement that Sonay Kartal needs. The Brit escapes to restore parity at two games apiece.
Jiang/Wu 4-6 2-6 Boulter/Raducanu
Jess Anderson
BBC Sport at Queen’s
Job done for Katie Boulter and Emma Raducanu!
A warm hug between the pair as they seal a comfortable win on their debut as a doubles partnership.
They look genuinely really pleased with that!
Cue the barrage of people leaning over the barrier or hanging around the court exit for a coveted autograph or selfie…
Image source, BBC Sport
Jiang/Wu 4-6 2-6 Boulter/Raducanu
Boulter and Radacanu through to second round after straight sets victory
That is victory confirmed for Katie Boulter and Emma Raducanu!
The British pair have really enjoyed themselves out there today and wrap up a straightforward victory in straight sets.
They could face Jodie Burrage and Sonay Kartal next, if they can come through their doubles opener...
*Kartal 6-1 1-2 Kasatkina
This meeting with Britain's Sonay Kartal continues to prove a real struggle for Daria Kasatkina, who makes a couple of errors to hand over a first break point of the second set.
Kartal is unable to take this opportunity, though, and Kasatkina finds a way.
*Jiang/Wu 4-6 2-4 Boulter/Raducanu
Yep, it's all smiles for the British number one and two over on court one!
Image source, Getty Images
Image source, Getty Images
Image source, Getty Images*Jiang/Wu 4-6 2-4 Boulter/Raducanu
Jess Anderson
BBC Sport at Queen’s
Katie Boulter and Emma Raducanu look to be cruising to victory here in their debut match as a doubles partnership, a set and a break up.
It’s been pretty comfortable for the British pair.
I’m close enough to the court that I could offer coaching tips but based on this, they don’t need them.
Not that they would ever need them from me but you get the idea.
Kartal 6-1 1-1 Kasatkina*
A much better start for Daria Kasatkina to set two. The Australian holds serve to 15 to get up and running after struggling to get going here.
But Sonay Kartal responds by out-doing the world number 16, holding to love to draw level.
Kartal 6-1 0-0 Kasatkina*
Well, that was incredibly comfortable for Sonay Kartal.
The British number three takes just half an hour to take the opening set.
That's a super impressive start but she'll expect some kind of response from Daria Kasatkina, who is a top-20 player for a reason.
*Jiang/Wu 4-6 1-1 Boulter/Raducanu
Jess Anderson
BBC Sport at Queen’s
It’s pretty intimate down here at Court 1 with the fan and media seats practically on top of the court.
It means we’re getting to see a lot of interaction between the players.
Emma Raducanu has just had a little giggle as she went to fill up her water bottle at the dispenser while we’re also getting a little insight into the pair’s tactics.
*Kartal 5-1 Kasatkina
Emma Raducanu and Katie Boulter certainly appear to be having a great time out there and enjoying their debut as a doubles partnership.
They're not the only Brits enjoying their opening day at Queen's, either.
Sonay Kartal is storming to the opening set on Andy Murray Arena.
She reaches 30-30 on Daria Kasatkina's serve to stand two points away from completing a 6-0 demolition job - but Kasatkina manages to get over the line for a first time from there.
Jiang/Wu 4-6 Boulter/Raducanu
Jess Anderson
BBC Sport at Queen’s
There’s a lot of laughing and chatting happening during the changes of end here on Court 1 between Katie Boulter and Emma Raducanu as they moved a break up and served for set one.
There’s clearly a nice friendship here and the pair are enjoying themselves.
Laughing and high-fiving between points and encouraging each other after misses…
Boulter has needed a bit of that encouragement as she double faults twice in her service game.
But there’s a big cheer from Raducanu and the crowd as she holds her nerve to take the set.
Image source, Getty ImagesKartal 5-0 Kasatkina*
The crowd show their appreciation as, on the run, Sonay Kartal rips a forehand down the line to take charge of her latest service game.
The British world number 50 is all over the 16th-ranked Daria Kasatkina here. Some performance so far.