Anastasia Potapova had an opportunity for an early lead but mistimed her jump and planted her smash long.

She levels the game at 15-all and again at 30-all, coming out on top of a breathless 24-shot rally. She chased down another drop shot and recovered a volley by throwing an arm before driving home a forehand pass. I'm exhausted just watching them.

But Gauff holds to 30.

Excellent hustle from Anastasia Potapova to chase down a drop shot at this stage in the match and then recover for the backhand smash, forcing Coco Gauff into another shot - and this time, she fires wide.

With a backhand winner, Potapova holds.

She out in front in the third set, leading 4-3.

She's held her nerve, outlasting Coco Gauff in their latest baseline rally before landing a good serve out wide which is returned into the tramlines.

Anastasia Potapova puts her hands on her knees - a familiar pose in this match - and rotates her shoulder a few times.

An eighth double fault has put her under pressure.

Oh, that's a snorter! Anastasia Potapova rips a backhand winner into the corner of the court. It's all square.

Right on cue! Coco Gauff double faults for 0-40.

Anastasia Potapova decides to put her anger into her groundstrokes, grinding Coco Gauff down until she can only waft a tired forehand into the net.

And then... a double fault.

She shakes it off to hold to 30 with an ace.

She's keeping herself in this and given Gauff's struggles on serve throughout this match, she should have an opportunity to break back before too long.

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With a forehand pass, Coco Gauff holds to 30 to consolidate the break.

Anastasia Potapova directed a mid-game shriek at her box.

Ooooh that was tight but Anastasia Potapova's backhand is just long.

Coco Gauff claims the early break. Can she put the hammer down? Not before she's had a rummage in her packed lunch (packed tea?)...

Potapova is grumbling and gesticulating at the back of the court.

Coco Gauff is enjoying some success when she gets Anastasia Potapova on the move, instead of allowing her to set up camp on the baseline.

A deep forehand winner is followed by a smash to bring up two break points.

Coco Gauff has only won eight points behind her second serve all match and loses another as she's pegged back to 30-all.

However, she seals the hold with a good serve out wide and a wicked cross-court backhand after being dragged off court - Anastasia Potapova's return is long.

So far, it's going with serve - something I haven't said very often in this match.

Anastasia Potapova flew out of the blocks in the opening two sets and she's started the third with a hold to 15 (although there was a pesky double fault in the mix...).

Anastasia Potapova has left the court at the end of that topsy-turvy second set.

Coco Gauff is expressionless on her bench.

After showing such brilliant fight from 5-2 down, that tie-break was so flat from Coco Gauff.

Anastasia Potapova takes it 7-1.

We're heading to a decider on Court Philippe-Chatrier.

Eek. Coco Gauff pulls one point back as a routine backhand sails long.

No drama - Anastasia Potapova wrong-foots Gauff with a backhand to bring up five set points.

Yet another error is compounded by a double fault from defending champion Coco Gauff.

Surely Anastasia Potapova can't let this lead slip?

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Coco Gauff's shoulder slump a little as she returns a second serve into the tramlines.

She makes it back-to-back unforced errors to hand Anastasia Potapova a 3-0 lead.

Coco Gauff, scrambling to recover a drop shot, sends her backhand lob long.

Anastasia Potapova opens up the court by driving Coco Gauff into the tramlines with consecutive cross-court forehands before pounding her backhand winner into the same area with the American scrambling the other way. 15-0.

Gauff pulls the game back to 30-all but Potapova nails a one-two punch with a wide serve and a cross-court backhand and secures the hold to force a tie-break.