Chanda Rubin
American former world number six at Wimbledon

This is a very difficult position for Rybarikova as the "more experienced" player against a 15-year-old who has nothing to lose.

You have to try and throw her off her game and get her unbalanced somehow.

She takes the first chance. Obvs.

Hold to love and barely broke sweat - all done in 29 minutes.

Gauff isn't interested in watching Love Island on ITV 2+1. She wants to get back for 9.

15-0.

30-0 with a fierce double-handed winner.

A big serve brings up three set points.

Gauff eases off in Rybarikova's service game.

This is something that player's tend to strategise after years of playing.

The 15-year-old will now serve for the first set.

Chris Bradnam
BBC Sport commentator at Wimbledon

Gauff has not put a foot wrong. It's been 23 minutes of excellence.

Starts don't get any better than this.

Image source, PA Media

Gauff holds once more.

Rybarikova's only hope is that the American's bedtime is about now.

This is truly mesmerising tennis.

Gauff is playing like Graf, the Williams' etc at their most imperious.

Scary.

Rybarikova throws her racquet in the air, wondering how she can get on top of this 15-year-old.

30-15.

Fourteen more years and she could be in Gauff's shoes!

Chanda Rubin
American former world number six at Wimbledon

It's a level of intensity that Gauff is bringing to every point. She's not letting up, she's not taking mental breaks.

Wow!

Gauff breaks to love.

Her mentor Patrick Mouratoglou, stands up to applaud.

Lovely fella, by the way.

Coco Gauff has switched on the porch light.

0-30.

She fires a yorker into the feet of Rybarikova who can't flick the ball back into court.

Three break points.

Katie Falkingham
BBC Sport at Wimbledon

Magdalena Rybarikova knows the crowd is against her for this one, and she doesn’t like it one bit.

Whether she’s standing with her hands on her hips with her tongue sticking out the side of her mouth, or shaking her head, she doesn’t like the level of support that accompanies the 15-year-old on the other side of the net.

Image source, Getty Images

Chanda Rubin
American former world number six at Wimbledon

She can actually get better at getting her first serve in. She's missed a few but she's adjusted so nicely behind it and that's a good sign.

It's also a nice sign how she closed out that game moving forward.

Coco Gauff gets out of the blocks faster than Christian Coleman to pick up a drop-shot.

She shrieks in delight when she sees the ball land in. However, it's called, "Out!".

Was it?

Computer says: "Are you havin' a laugh?"

Gauff gets the point and goes on to hold again.

Coco Gauff isn't dictating here as much as she did against Venus Williams.

Rybarikova is a great baseline player but also decent at the net.

Gauff puts herself under pressure with a second double-fault.

30-30.

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The Slovak 2017 semi-finalist goes on to hold after Gauff goes long.

#intriguing

Elon Musk would have been proud on the elevation Gauff unintentionally gains on a rocket of a return.

It actually lands back in Rybarikova's side of the court, who smashes the winner.

The crowd chuckle - it was mildly amusing.

Gauff makes it 30-15 in her favour before Rybarikova races to the net to put away another winner.

30s each.

We are currently speeding through these games.

Coco Gauff smacks a beautiful double-handed backhand winner for her own love hold.

The quality is high from these two players.

It's filling up slowly on Court One.

A very easy love hold for 30-year-old Slovak Magdalena Rybarikova, who was once a top-20 player.

She has it in the locker, it's a case of whether it's jammed in.

Image source, Getty Images