Stan Wawrinka has brought home the first set against Joao Sousa and has an early break in the second, leading 6-3 2-0. His Portugese opponent is not a happy bunny though, rabbiting away to the umpire about a dodgy call.

Image source, Matthew Stockman

Lleyton Hewitt just keeps trucking. Thirty-three years on the clock, one Wimbledon title under his belt, the Australian is 6-2 0-2 up on Michal Przysiezny.

Jerzy Janowicz will have to come from a set down to keep his hopes of a repeat run to the semi-finals alive. The Pole has lost the first set to Somdev Devvarman 6-4.

Japanese 10th seed Kei Nishikori has taken the opening set against France's Kenny de Schepper for a 6-4 1-2 lead.

A couple of interesting facts about Samantha Murray for you.

Back in 2007 when Maria Sharapova got to the fourth round, she was working in the accreditation office at Wimbledon having just graduated from Northwestern University in Illinois where she studied Economics.

She also has an uncle Andy who will be watching on from in her box today. He will reportedly be wearing a t-shirt with the slogan "I am Andy Murray" across it.

Image source, PA

Samantha Murray (who plays Maria Sharapova on Court One later): "I'm excited to play someone of her level. It is a dream draw to get the chance to play against her and it is really exciting. It has been different to what I am used to on the Challenger Tour and I am looking forward to it. I've been watching videos of her and I know what I will do when I go out and play her.

"I want to put my game on the court, do my best and show people what I can do. Being at Wimbledon is special - last year I was star-struck, this year I am more relaxed. I worked here one year in accreditation so this is a bit different!"

Emma Sanders:, external "Buzzing about today's games at Wimbledon. Such a good line-up!! Come on Federer!!"

Laura Cottam:, external "Exciting day at Wimbledon should be good. I will definitely be watching Rafael's and Serenas' match."

You don't need to take on the vagaries of London's transport system to get involved with Wimbledon this year.

Parcel up your thoughts with #bbctennis, external on Twitter or on 81111 on text to let us know your predictions, witticisms and the like.

How about for an opener, you put together an all-conqueroring mixed doubles partnership from the players on show today?

Remember it is a delicate mix of personalities as well as tennis skills in those partnerships. Might the happy-go-lucky Sabine Lisicki and the wise, old head of Roger Federer be tennis gold?

Your call...

It is a jam-spangling bobbie-dazzler of a day in SW19 this morning. The umbrellas have already been cracked open to protect the players from the rays at the change of ends.

Image source, Dan Kitwood

Australian Open champion Stanislas Wawrinka is probably grateful as a bit of a pasty sort. The fifth seed is under way against Portugal's Joao Sousa. Solidly on serve for the moment with Sousa serving out to love to level up at 2-2.

Don't burn the red, white and blue bunting just yet though. There are four Britons in action today.

Stockport's Samantha Murray has the highest profile outing, taking on Maria Sharapova on Court One.

Heather Watson is second on Court three against Ajla Tomajanovic, closely followed by Mancunian Daniel Smethurst's meeting with big bad John Isner.

Tara Moore, who lost on her first wildcard appearance in the main draw last year, takes on Vera Zvonareva.

Andy Murray will not have a lot of British company around the practice courts for the rest of his campaign.

James Ward, Dan Cox, Dan Evans and Kyle Edmund were all fallers in the first round, while Joanna Konta went down 6-4 3-6 6-4 to China's Peng Shuai.

Naomi Broady was the sole winner, overcoming world number 94 Timea Babos 2-6 7-6 (9-7) 6-0 to reach the second round.

Tim Henman
Former British number one on BBC TV

"For Roger and Rafa, they will be keen to get a good start, bearing in mind what happened to them last year. They are both in good form and it will be interesting to see how they start their campaigns.

Lawrence Barretto
BBC Sport at Wimbledon

Image source, Reuters

"Fresh from his opening victory in defence of the Wimbledon title, Andy Murray was in good spirits as he turned up for practice.

"The Briton opened with some light rallying with his hitting partner before coach Amelie Mauresmo asked him to practise angled cross-court forehands, laced with topspin and power before switching and going for a big forehand down the line.

"Good....good....good one," says an encouraging Mauresmo. The Frenchwoman then adds some competition to proceedings.

"The first to seven points wins, with a focus on cross court winners. Murray edges it 7-6, having been 6-2 up, and clenches his fist as a joke as he jogs to the net."

Image source, AFP

Former world number one Caroline Wozniacki takes on the wily Shahar Peer second on Court 12 with the winner to play Britain's Naomi Broady.

American youngster Taylor Townsend, the 18-year-old who reached the third round of the French Open earlier this month, is up against 31st seed Klara Koukalova on Court 17.

Agnieszka Radwanska, runner-up in 2012, plays Andreea Mitu of Romania second on Court two.

On the first couple of days Wimbledon's player traffic control boffins are pushing some big names out to far-away lawns get the first round done and dusted.

So one to watch away from the two main courts in the men's draw include an early trip over to court 17, where last year's semi-finalist Jerzy Janowicz will be dusting off that brute of a serve against India's Somdev Devvarman.

Next take a trip over to court two where Canadian Milos Raonic, long touted as a potential Wimbledon winner of the future, tees off against Australian Matthew Ebden.

And if that is all a little too biff and bosh for you, take a peek at Richard Gasquet who will be strutting his stylish all-court stuff over on court 18 against James Duckworth.

You can catch the day's order of play here.

Image source, AFP

Whisper it quietly, but those on Court One might have landed the better line-up this morning.

They get to see Jo Wilfried Tsonga attempt to convert a 6-1 3-6 3-6 6-2 5-4 lead against Jurgen Melzer into a place in the second round in a match that was rained off late yesterday evening.

Then they roll out the red carpet for Roger Federer who takes on Paolo Lorenzi, before Stockport's own Samantha Murray plays Maria Sharapova.

For afters there is Australian Open semi-finalist Eugenie Bouchard, a lady heading places, against world number 34 Daniela Hantuchova.

Sabine Lisicki ended Serena Williams' title defence last year. You can bet the American five-time champion, who is yet to reach the quarter-finals of a Grand Slam this year, will be training all her considerable fire on bringing home the bacon from this fortnight in south-west London.

Compatriot Anna Tatishvili standing in Williams' way, possibly trembling a touch, in the third match on Centre Court today.

Image source, Getty Images

First on the showpiece court from 13:00 BST today is Sabine Lisicki.

A charming combination of big groundstrokes and an even bigger grin, she had the Wimbledon crowd eating out of her hand on her way to the semi-finals in 2011.

She has consistently out-performed her seeding at SW19, losing to Marion Bartoli in last year's final, as well as making the quarter-finals in 2012 and 2009.

She is up against Israel's Julia Glushko, who is making her first appearance in the main draw after losing in qualifying in 2011 and 2013.

Kliznan, the Slovak world number 51, will be taking first-round pot-shots at Rafael Nadal today, hoping to bag himself the biggest scalp of his career so far.

They have second use of Centre Court this afternoon.

Image source, Getty Images

For a man who won the tournament's greatest ever final, beating Roger Federer in five epic sets back in 2008, Nadal has suffered indecently hasty exits on his last two visits to Wimbledon.

Before his embarrassment against Darcis, the Spaniard made a cult hero of Lukas Rosol, going down to the then-world number 100 in a late-night upset in 2012.

Martin Klizan, do you feel lucky punk?

Image source, Getty Images

Last week Steve Darcis played his first Tour-level event of the season in the Dutch town of s'Hertogenbosch. The 30-year-old Belgian lost in the first round of qualifying to Croatian world 475 Mate Pavic.

Rafael Nadal's 2014 has gone better. The world number one reached the final of the Australian Open and picked up his customary French Open title, as well as winning events in Madrid, Rio and Doha.

Yet twelve months ago, when the pair met in the first round of Wimbledon it was Darcis who was the straight sets winner.