Petra Kvitova must be wondering how she lost that game.

The Czech raced into a 40-0 lead, hitting three thunderous winners.

But she couldn't take any of her three break points, with American Emma Navarro winning five points in a row to get on the board for the first time.

Dan Evans sends a whipped forehand beyond Jay Clarke for a 40-15 lead.

The hold is sealed when Clarke's return lands in the tramlines.

Clarke will serve to stay in the match.

Image source, Getty Images

Petra Kvitova eases into a 2-0 lead as she comfortably keeps hold on her opening service game.

The Czech has settled a lot quicker than Emma Navarro here.

Image source, PA Media

Sonia Oxley
BBC Sport at Wimbledon

Could this be the last time two-time champion Petra Kvitova walks out on to a Wimbledon court?

The Czech is retiring after the US Open later this year and she has got a tough draw here against 10th seed Emma Navarro. This is only Kvitova's ninth match since coming back from maternity leave and she has only won once in that time.

She loves this tournament - she even got engaged on Centre Court three years ago.

On Centre Court, the match that was halted at about 22:55 BST on Monday between Alexander Zverev and Arthur Rinderknech has resumed.

And Frenchman Rinderknech - who had a point for a two-set lead last night - has gone a break up early against German third seed Zverev in the third set.

Image source, Getty Images

Dan Evans wants to get this done swiftly.

The British number five secures a double break in the third set and the second round is in sight.

Harry Poole
BBC Sport at Wimbledon

“Come on Bublik, you’ve been through more difficult things than this” are the words of encouragement offered by one spectator beside me.

Despite only being about 20 metres away, Alexander Bublik doesn’t flinch.

Instead, he slices over a magnificent drop shot to save match point. Chef’s kiss.

Two-time Wimbledon winner Petra Kvitova gets an early break against Emma Navarro.

The 35-year-old finds the chalk of the baseline on her break point, forcing American Navarro to send a wild return out of bounds.

Wow.

Dan Evans whips out a lovely cross-court backhand to earn advantage.

Evans kicks on for the hold.

Image source, Getty Images

Yuliia Starodubtseva has taken the lead in this second set, maximising points from the unforced errors from Fran Jones in the longer cross-court rallies between the pair.

Jay Clarke needs a break back soon to prevent Dan Evans from applying some serious scoreboard pressure.

Clarke leads 30-0 against serve but his time on top is short-lived as Evans gets back to 30-30 with an ace.

"Come on", shouts Evans as he leads 40-30 but Clarke gets to deuce.

Harry Poole
BBC Sport at Wimbledon

Out on court 14, Alexander Bublik is in an almighty battle with Spaniard Jaume Munar.

The 28th seed served for the match in the fourth set but, after being taken to a decider, finds himself down in the fifth.

Lots of chuntering and shaking of the head from Bublik right now as he falls a second break down.

The French Open quarter-finalist is in serious, serious trouble.

Jay Clarke brings an end to Dan Evans' five-game winning streak.

Clarke comes up with an ace to get a hold to 30.

Dan Evans consolidates that early break with a hold to love.

A huge game ahead for Jay Clarke coming up.

Former world number one Iga Swiatek takes the first set after breaking Russia's Polina Kudermetova at 6-5.

Image source, Getty Images

Jay Clarke begins with an ace.

Dan Evans still looks pretty pumped as he raises his fist to celebrate a forehand winner. He leads 30-15.

And the emotions continue to build for Evans when another winner seals an early break.

Pedro Martinez shouts 'Vamos!' after he holds on his service game and you feel the end is in sight.

George Loffhagen is then broken once again with the British wildcard hitting into the net and arrowing a forehand just wide of the lines.

Martinez has a chance to serve for the match.