Laura Robson
Former British number one on BBC Radio 5 Live and BBC Sounds

Image source, Getty Images

The error keeps coming off Navarro's forehand. It's almost like her body stays too far behind her when she is making contact with the ball, which maybe isn't a technique you would teach. It looks a bit uncomfortable, and like she is playing with the wrong grip at times.

When she has time it works perfectly, but when she is being pressured it looks like she has to think so much before she plays the shot.

Martina Navratilova
Nine-time Wimbledon singles champion on BBC Two

Navarro is trying to keep the ball low but it is tricky when you are so far behind the baseline.

Andreeva has got a lot more pop on her serve now. If Navarro keeps her positioning close to the baseline, Andreeva will be dictating the whole match.

Navarro is losing power on her serve because she opens her body up too early so it is all coming from her arm. She needs to use her body more.

Image source, Reuters

Much better from Emma Navarro, who holds to 15.

Mirra Andreeva will come out to serve for this first set after the change of ends.

Jonathan Jurejko
BBC Sport senior tennis reporter at Wimbledon

Like many teenagers, Mirra Andreeva is still prone to a tantrum or two.

Some of her behaviour - notably swiping away balls towards the crowd - has come close to crossing the line.

The way she combusted against home wildcard Lois Boisson in a febrile French Open quarter-final last month was also a reminder of her tender years.

In her first appearance on Centre Court, she is looking calm and collected so far.

Laura Robson
Former British number one on BBC Radio 5 Live and BBC Sounds

Both players are incredible movers, Andreeva in particular. For me, she is right up there just behind Coco Gauff as one of the most fluid movers on the court.

She is recognising the patterns of play so far and getting herself in the right positions. She has more 'oomph' on her forehand compared to her opponent, so it is a tricky challenge for Emma Navarro.

Gary Rose
BBC Sport at Wimbledon

Mirra Andreeva is bouncing around the court and dictating things from the baseline like she has played on Centre Court all her life.

We're only 23 minutes in and she's one game away from taking the first set. So far, a dominant display by the teenager.

"Come on," yells Ben Shelton, as a Lorenzo Sonego shot goes long. He repeats the exclamation when the same thing happens the next point.

And then the American basks in the Court One applause when he stretches every sinew to reach a backhand volley that puts him three points to the good in the breaker. Make that four, as another Sonego forehand flies out.

Mirra Andreeva is hitting it out there like it's her 100th appearance on Centre Court, not her first.

The Russian eases to her third consecutive hold of the set.

Ben Shelton looks in trouble at 0-15 when his first serve finds the net - but a second serve at 116mph right into the Sonego body gets him back on parity. Gamble but, boy, did it pay off.

A big forehand winner down the line seals the hold and we're going to a tie-break.

Image source, PA Media

Mirra Andreeva's power is proving too much for Emma Navarro to handle right now.

Once they get into a hitting match from the baseline, there's only one winner.

The Russian seventh seed has a commanding double-break lead.

Ben Shelton unleashes a barrage of brilliant first serves to hold to love and make one wonder how he was broken so easily in his previous service game.

Lorenzo Sonego is slightly more tested the following game but an errant Shelton backhand ensures the Italian holds to 30.

Mirra Andreeva eventually gets the hold after being taken to deuce.

Emma Navarro's got a job on her hands staying in this first set.

Martina Navratilova
Nine-time Wimbledon singles champion on BBC Two

Andreeva should win this match, she is the favourite. She doesn't really have any weaknesses and her attitude on top of that makes her a strong competitor.

Future champions have already imagined themselves winning here. They don't feel like imposters. That's the feeling you get with her. She is not scared, she goes for it.

Mirra Andreeva, take a bow.

The Russian takes her first break point opportunity, powering a double-handed backhand winner down the line at 30-40.

The teenager's power is something else.

Martina Navratilova
Nine-time Wimbledon singles champion on BBC TV

This is a clash of styles between these two. They are both fairly new customers here so it will be interesting to see who handles the pressure better.

Andreeva has done so much at such a young age. Her serve is where she has the biggest step-up over Navarro in this match-up.

Mirra Andreeva holds to love. Some going for your first service game on Centre Court.

The Russian's serve is huge. She powers one down the line at 118mph to put Emma Navarro back on serve.

Image source, EPA

Unreal point. Ben Shelton slips, slices, benefits from a net cord but can still only dish up an easy lob that Lorenzo Sonego hammers away to set up a quickfire break-back point.

And when Shelton sends a volley just long to follow, we're back on serve.

Gary Rose
BBC Sport at Wimbledon

It can be tough to follow a pretty long match on Centre Court and there's a few empty seats for the opening stages of this one.

Perhaps that will help with any nerves Mirra Andreeva has about making her Centre Court debut, she's certainly not showing any sign of them so far.

Emma Navarro gets the hold.

A fairly lengthy opening service game from the American.

Mirra Andreeva didn't show any signs of nerves at all.

Mirra Andreeva is supposed to be nervous playing for the first time on Centre Court, isn't she?

Far from it so far, she's making Emma Navarro work in the opening service game.