French Open champion Maria Sharapova has just begun her quest for the Wimbledon title, 10 years after she clinched her first Grand Slam title. The Russian takes on British wild card Samantha Murray.

Amusingly, Murray's uncle is called Andy Murray. But he's no relation to THAT Andy Murray. Uncle Andy tells BBC TV's Lee McKenzie: "We're looking forward to the game. I spoke to Sam in the players' lounge about 15 minutes ago. She seems relaxed - and we hope it goes well for her."

Mike Henson
BBC Sport at Wimbledon

"It is not all isotonic and barley water at SW19. Over on the swanky side of Centre Court, blazered men are partying like it is 1989. The bar is well away from any outside court, which is lucky given the confident volume of conversation."

Image source, Getty Images

Martin Klizan punches the air and gives a look of approval to his box. The world number 51, who has previously only won one match at Wimbledon, wins the first set against Rafael Nadal.

Peter Fleming
Seven-time Grand Slam doubles champion on BBC TV

"Klizan is impressing with how he is getting around the court. That was a shank of a second serve for the double fault from Nadal which gave Klizan the break to go 5-4 up and serving for the set. Centre Court is now abuzz."

Image source, AFP

Shock all round Centre Court as Martin Kilzan breaks Rafael Nadal's serve to lead 5-4 in the first set of their first-round encounter. The 24-year-old has absorbed the pressure of playing on this huge court against a highly decorated opponent and now finds himself serving for the set.

Nadal lost to Steve Darcis in the first round last year and lost his only match on grass this year at the Gerry Weber Open in Halle earlier this month.

Tim Henman
Former British number one on BBC TV

"I always felt grass would be a good surface for Rafa but because the ball stays lower there is a lot of bending and it was sad to see him struggling last year but he has come back from that. The way he played in Paris he will have confidence. He will be keen to get a win under his belt today and then build on that for the rest of the tournament."

Martin Klizan is holding his own against nine-time French Open champion Rafael Nadal out on Centre Court, to the surprise of the crowd. The 24-year-old, ranked 51st in the world, is looking to improve on his previous best Grand Slam performance which was reaching the fourth round of the US Open in 2012.

Roger Federer on BBC One: "I'm very happy getting through my first round. I thought I played very well. What you want to feel is inspired and motivated. I'm trying to win the tournament, that's what I'm here for. I didn't know my opponent hadn't won a Grand Slam match. I thought he did a good job trying to force it but maybe he doesn't have the big serve for grass."

Jo Durie
Former world number five on BBC TV

"Heather Watson is looking at home and relishing the fact that she is playing so well. Having glandular fever, being ill and not being sure initially what it was, she had a lot of time off, she lost a lot of ranking points and I think she panicked. When she recovered, she decided she was going to start building up again - and she's improved her first serve, improved the way she's hitting ball, her ranking is climbing and she's looking so much more in control of her emotions and her tennis."

Piers Newbery
BBC Sport at Wimbledon

"Watson has made a terrific start on court three, thumping down an ace to move 3-0 up against Tomljanovic, who reached the fourth round of the French Open last month. The Briton saved a break point in the opening game with a sortie to the net, and her newly-attacking approach is paying off at the moment."

Joe McArdle:, external Nadal has two Wimbledon titles and you consider him one of the greatest Wimbledon champs?! Sampras has seven and won four on the bounce!

Rob Beale:, external Federer is the best of all time. More grand slams and much longer at number one ranking than Nadal which is a factor overlooked. How many weeks has Rafa been at number one (total) compared to Federer? Guessing it's less than half.

Elijah:, external Nobody can compete with Roger Federer. So many women from the past are better than Serena Williams and Maria Sharapova, too.

Image source, Marion Bartoli

Marion Bartoli, external - who retired shortly after winning last year's Wimbledon title - made a tearful appearance on Centre Court shortly before Sabine Lisicki's opening-round victory over Julia Glushko. She was joined by a young member of the Elena Baltacha Academy of Tennis as a tribute was paid to the former British number one, who died of liver cancer in May:

Bartoli tweets: "I m sorry I got so emotional - I couldn't hold my tears being on the Centre Court anf supporting #Rally4Bally at Wimbledon."

Heather Watson has begun her Wimbledon campaign out on court three. The British number one is playing Ajla Tomljanovic, ranked seven places above her. It's been a good start, with the 22-year-old holding serve to lead 1-0. You can follow the match via the live coverage tab at the top of the page.

Tim Henman
Former British number one on BBC TV

"Lorenzi played his part but was always going to be up against it having never won a Grand Slam match before. This was the ideal start for Federer. He didn't drop serve all afternoon and had good percentages on his first and second serves. He will know the challenges will get tougher as he progresses through the fortnight. On this surface when he is getting on the front foot he is still a match for anyone. It would be fantastic in 10 days' time if we could see the top four seeds in the semi-finals. We have seen it happen before so it may happen."

Image source, AFP

Federer's first double fault briefly delays him at 30-30. But two serves later he's there, one that Lorenzi can only frame wide, the other an ace down the middle. Onwards Federer strolls after an hour and 33 minutes of grace and power, and the Court No.1 crowd rather enjoyed that.

Stan Wawrinka, Australian Open winner but a player who has never gone beyond round four here at Wimbledon, interestingly describes the challenges of playing on grass:

"It's a quicker surface, for sure. It's a surface if you are not completely confident and relaxed with your game, you have some problems. That's why I've had problem in the past. In the first round you can be a little bit tight, a little bit nervous. On that surface, it's really tough to get through. That's the difference. It's really tough."

Wawrinka beat Portuguese Joao Sousa in the first round in three sets earlier today.

Image source, AFP

BBC broadcaster John Humphrys has Hollywood actor Hugh Jackman for company in the Royal Box this afternoon. Yes, that really is Hugh Jackman.

The Australian is sporting a bald head and some questionably-styled facial hair. It's not a fashion choice, or at least I don't think it is. No, Jackman is playing pirate Blackbeard in his new movie Pan.

Match points aplenty for Federer, three of them spurned as he tries to administer the coup de grace with the hardest hit forehand in history. Eight deuces now, and Lorenzi refusing to give up - Federer at the net, volley into the tape, game saved. Plucky - but when Paulo does capitulate, his career Grand Slam record will stand at 0-13, which will be the second worst record in men's Slam history. Only one player, Costa Rica's Juan-Antonio Marin, has a worse record, with no wins and 17 losses. Ouch.

Piers Newbery
BBC Sport at Wimbledon

Image source, Getty Images

"Lleyton Hewitt gives the yellow-clad Aussie 'Fanatics' what they want on Court Two as he completes a 6-2 6-7 6-1 6-4 win over Poland's Michal Przysiezny, the 2002 champion celebrating with a gutteral scream and some trademark fist pumping. His victory clears the way for Britain's Heather Watson, who is sporting a natty headband as she arrives to take on talented Croat Ajla Tomljanovic."

There's quiet all around Centre Court as Martin Klizan rustles up a break point on the Rafael Nadal serve. No one saw that coming. The Spaniard saves it with some accurate serving and then wins the next couple of points to seal the game, but it is enough to suggest Kilzan is going to put up a fight in this match.