Off we go on court 17 with Argentina's Tomas Martin Etcheverry facing Briton Jack Pinnington Jones.

Etcheverry is on serve to begin.

Mirra Andreeva is safely through to the second round after a comfortable straight sets 6-3 6-3 win over Egypt's Mayar Sherif. The seventh seed needed just one hour and 20 minutes to wrap up the victory.

Iga Swiatek wasted no time out on court two, opening her Wimbledon bid with a convincing 7-5 6-1 win over Polina Kudermetova. It was the Pole's 61st consecutive win in an opening match of a tournament - the longest streak of any woman this century.

The second round also awaits 21st seed Tomas Machac, who completed a straight sets 6-3 6-2 6-4 victory over Bosnia-Herzegovina's Damir Dzumhur on court 15.

Elsewhere, 15th seed Jakub Mensik has opened up a comfortable one-set advantage against France's Hugo Gaston. The pair are well into the second set on court 18 now, with things all square at 3-3.

Choose from all 18 courts on BBC iPlayer

Sonia Oxley
BBC Sport at Wimbledon

"I wish we could have played a little longer" - Petra Kvitova is given the honour of speaking despite losing and the crowd stay on their feet.

She thanks all her family and her coaches - pointing out she started with her dad and ended with her husband.

She says Wimbledon has held the "best memories" for her - she's won the title twice, got engaged here and her son was born during the championships last year.

She asks to have a moment to say something in Czech, saying she will never be able to thank them enough.

She says she will miss 'Wimby' as she calls it and tennis and the fans.

Judging by the cheers and the odd tissue that comes out, they will miss her too.

Image source, BBC Sport

Harry Poole
BBC Sport at Wimbledon

Alexander Zverev walks to his chair with his head bowed. Another two break points missed in that game.

The crowd are certainly appreciating the fight being shown by Arthur Rinderknech here. Can he put the third seed under serious pressure now?

More reaction from Petra Kvitova's defeat by Emma Navarro to come.

Next up on Court One, it's the British number one Jack Draper...

Alexander Zverev is now nought for nine on break points in this match, as Arthur Rinderknech again recovers from 15-40 down to hold serve.

Image source, Getty Images

Image source, Getty Images

Retiring Petra Kvitova speaks on court after her Wimbledon career comes to an end with defeat by Emma Navarro: "Thank you for the atmosphere, it was wonderful to play on this beautiful court. Congrats Emma. I wish we could have played for a bit longer. I never dreamed of winning Wimbledon and I did it twice so this is something very special.

"I will miss Wimbledon, I will miss tennis, I will miss you fans but I am ready for the next chapter of life as well. I can't wait to be back as a member. Thanks to the people who helped me to improve as a player and a person.

"I didn't have many tennis coaches in my career but my first one was my dad and he is here today. My last one is my husband so I want to thank them all and the people in my box.

"Thank you to all my family back home. Thank you very much Wimbledon."

Emma Navarro on Petra Kvitova to BBC Sport: "Petra's had an amazing career. It was a pleasure to play against her today. It was surreal looking across the court to see her serving bombs at me. It was intimidating at times. I just want to say congratulations on everything you've done in this sport and wherever this life takes you."

Sonia Oxley
BBC Sport at Wimbledon

Huge standing ovation on Court One for Kvitova, who is being given the microphone.

Martina Navratilova
Nine-time Wimbledon singles champion on BBC One

Petra Kvitova is such a nice person on and off the court, great role model for kids in Czech tennis.

Arthur Rinderknech had gone three and a bit sets without dropping his serve in this match... and he still hasn't, saving two break points by coming out on the right side of long rallies before wrapping up the game.

It's last chance saloon stuff for Petra Kvitova.

Martina Navratilova
Nine-time Wimbledon singles champion on BBC One

Emma Navarro does not beat herself, she makes her opponent beat her.

She should get to the net more because she is very good there.

Emma is very cool, she has a poker face on the outside and the inside.

Navarro is playing smart tennis.

The unforced errors creep in again for Francesca Jones as she falls 30-0 down on serve.

Jones gets back to 30-30 but a loose forehand into the net hands match point to Yuliia Starodubtseva.

Sonia Oxley
BBC Sport at Wimbledon

Kvitova has been well known for her shouts of "Pojd'" (Czech for 'come on!') over the years ... I just heard one but it was from someone in the crowd and not her.

Emma Navarro has the double break in this second set.

After saving two break points, Petra Kvitova finds the net on Navarro's third to give her a comfortable lead.

Kvitova will need a minor miracle now to prolong her Wimbledon career.

Image source, Getty Images

Aces number 17, 18 and 19 of the match secure a service hold for Alexander Zverev.

Yuliia Starodubtseva is charging through this game and towards the finishing line.

Francesca Jones stalls that progress for a moment to get to 40-15 but a powerful Starodubtseva down the middle wraps up the hold.

Jones is serving to stay in the match.

Image source, PA Media