Novak Djokovic is clearly seething after losing his serve but channels his frustration into breaking Valentin Royer again.

With the will of a champion, he rattles off four points in a row to break Royer to love, clinching the game after forcing an error from his opponent with some aggressive hitting around the court.

Djokovic again urges the crowd to give him some encouragement.

Yuliia Starodubtseva has SIX match points and cause the biggest upset of the French Open so far.

Yuliia Starodubtseva shakes a clenched fist towards her team after sending a wicked cross-court forehand winner whistling past Rybakina.

And then a 70th - yes, 70th - unforced error from the second seed.

Two points away from a massive upset.

Well, that was unexpected.

Novak Djokovic finds himself 0-30 down and then serves a double fault.

He's facing his first break points of the match - and there are three of them.

The former world number one saves them all but then rails at the heavens as Valentin Royer faces another.

And a fourth double fault of the match for Djokovic means it's back on serve in the third set.

Even with Yulia Starodubtseva's weaker second serve, Elena Rybakina can't capitalise.

The Kazakh takes control of the next point and has Starodubtseva for the taking, but then she slams a forehand long.

This is getting away from her now. 6-2.

A big serve from Yuliia Starodubtseva and Elena Rybakina can't adjust quickly enough to put it back in the court. 4-2.

There's just no rhythm in Elena Rybakina's game. A long forehand followed by a winner down the line, and then another miss. 3-2 with a mini-break - 10 points needed for victory.

A double fault isn't the best way to start, but Elena Rybakina redeems herself with a powerful cross-court winner on the next point. 1-1.

We're going all the way. Yuliia Starodubtseva holds and forces a match tie-break.

Who wins is anyone's guess.

Image source, Getty Images

Greg Rusedski
Former British number one on BBC Radio 5 Live

You feel like this match does deserve a tie-breaker with all of the drama we've had so far. Starodubtseva has battled exceptionally well.

Novak Djokovic tries to get the crowd involved as he looks for a way to see off Valentin Royer, asking for them for encouragement, and they duly respond.

The cheers give way to groans as Royer double-faults to give Djokovic a break point.

And the Serb duly converts by wrong-footing his opponent to take a big step towards reaching the third round here for the 21st year in a row.

Greg Rusedski
Former British number one on BBC Radio 5 Live

This is one of those matches where if Rybakina comes through, it just gives her a little bit more confidence because if you're going to go on to win a major there's always one match where you don't necessarily play your best tennis but you find a way to come through it.

Elena Rybakina isn't playing her best tennis but she's at least got her serve back on track.

There's not the same number of aces flying off her racquet but that won't matter to her at the moment as she gets another hold over the line and put the pressure back on Yuliia Starodubtseva.

Once again Novak Djokovic holds serve easily without dropping a point.

Still no sniff of a break point for Valentin Royer.

Image source, Getty Images

Any thought that Valentin Royer might just lose heart and roll over in the third set is way off the mark as he again holds to love.

Greg Rusedski
Former British number one on BBC Radio 5 Live

Starodubtseva looks like a natural on clay. We've talked about her results this year, she's got that loopy, heavy topspin forehand and she moves exceptionally well.

She's a natural with sliding and there aren't many players who are as natural as she is.

Yuliia Starodubtseva seems to be fading at the same time that Elena Rybakina has found a bit of rhythm.

The second seed manages to hold and move one game away from the third round, although she can't do anything but hit unforced errors on Starodubtseva's serve.

Another straightforward hold for Novak Djokovic, who still looks like he's not particularly enjoying being out there.

Image source, Getty Images

Credit to Valentin Royer, who is continuing to take the match to Novak Djokovic.

The 24-year-old Frenchman begins the third set in style by holding to love for the first time in the match.

But now he just has to find a way to threaten the Djokovic serve.

She gets it! A long, looping forehand by Yuliia Starodubtseva whistles past the baseline and we're all square again.