Annabel Croft
Former British number one on BBC Radio 5 Live

Kasatkina's body language has shifted completely. I think she is feeling the negativity from the other end.

Daria Kasatkina is venting her frustration now as Aryna Sabalenka works her around court before smacking a forehand winner.

Kasatkina fights back and forces deuce as Sabalenka goes into the net, prompting a fist pump from the Australian.

Sabalenka's forehand is always such an important asset and she brings it out in trademark style to secure the hold.

On Court Philippe-Chatrier, the second set is going with serve as American sixth seed Amanda Anisimova tries to fight back from losing the opening set.

Neither player has earned a break point in the second, with Anisimova holding her most recent service game to love.

Image source, Getty Images

Daria Kasatkina does some tidy work at the net but then gifts Aryna Sabalenka a point with a double fault.

Kasatkina recovers as Sabalenka hammers a forehand long and the Australian secures the hold.

Sabalenka offers a frustrated stare after that unforced error.

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Daria Kasatkina forces Aryna Sabalenka into a couple of errors and the game goes to deuce.

Two big first serves later and Sabalenka secures the hold.

You get the feeling Kasatkina could come under some pressure in this next service game.

There's nothing Daria Kasatkina can do about that as Aryna Sabalenka lets out a defiant cry with a whipping forehand winner across court to bring up break point.

Kasatkina then puts a forehand into the net as Sabalenka breaks back to level the score in this second set.

Normal service resumed for the Belarusian top seed.

That's the Aryna Sabalenka we saw in the first set and she holds to love with Daria Kasatkina unable to handle the Belarusian top seed's power.

The winner of this match, remember, faces a fourth-round tie with four-time Grand Slam winner Naomi Osaka.

Daria Kasatkina has a brisk hold to love with Aryna Sabalenka unable to really get the ball in play.

Where has this change in momentum come from?

Annabel Croft
Former British number one on BBC Radio 5 Live

At least Kasatkina has got the scoreboard going and can turn this game around now. That was a poor game from Sabalenka.

Aryna Sabalenka might have won the first set without dropping a game but she still has time for a frustrated eye roll as she doesn't connect properly with a backhand.

Daria Kasatkina has started this second set well and brings up a first break point with a forehand winner.

The Australian secures the break, and gets on the board, as Sabalenka skews a backhand wide.

Straightforward for Aryna Sabalenka but on Court Philippe Chatrier, American sixth seed Amanda Anisimova has lost the first set against France's Diane Parry.

Parry trailed by an early break but won five games in a row to take it 6-3.

Image source, Getty Images

Daria Kasatkina races to 40-0 before lobbing a forehand long.

A superb forehand winner across court from Aryna Sabalenka is then followed by a double fault and the game heads to deuce.

Kasatkina saves one set point but is powerless to prevent the second as Sabalenka unleashes a crushing forehand to seal the set.

Imperious from the world number one.

Annabel Croft
Former British number one on BBC Radio 5 Live

At this moment this match up is really suiting Sabalenka, it is making her feel good and she will come off the court feeling really happy. I don't think Kasatkina is doing anything to trouble her.

A rare lapse from Aryna Sabalenka as she double-faults to give Daria Kasatkina a chance to force deuce.

Sabalenka makes amends next point as she works Kasatkina wide before coming into the net to volley into the open court to hold.

After only 20 minutes, Kasatkina is serving to stay in the set.

Ryan Harrison
Former American tennis player on BBC Radio 5 Sports Extra and BBC Sounds

Kasatkina does not have the firepower to go swing for swing with Sabalenka, so she's got to try to be disruptive and not overpowering.

Aryna Sabalenka has settled very quickly into this match and an inch-perfect drop shot brings up two break points.

Daria Kasatkina takes a deep breath before her serve and although she saves the first, she's unable to rescue the second as Sabalenka gets the double break.

The Belarusian top seed is making this look easy so far.

Daria Kasatkina manages to get a foothold in the game at 30-30 but Aryna Sabalenka forces game point, before a strong first serve sees the Belarusian hold.

So far so good for Sabalenka, who is chasing her first title at Roland Garros.

After going 40-0 down, Aryna Sabalenka fights back to force deuce before earning the first break point of the match.

Daria Kasatkina gets the better of a 10-shot rally for deuce again, but Sabalenka brings up a second break point with a forehand winner.

This time the Belarusian top seed gets the break as Kasatkina can't get to a powerful backhand.

It's the perfect start for top seed and world number one Aryna Sabalenka as she holds to love in the first game of her third-round match against Daria Kasatkina.