The men's and women's tours have tightened security around tournaments in recent years.

Serena Williams and Andy Murray were the big losers in the Miami Open as they were dumped out in the third and fourth round respectively on a day of upsets in Florida.

Serena Williams let herself briefly bask in the joy of a sixth Wimbledon championship, 21st Grand Slam singles trophy overall and fourth consecutive major title on Saturday, even balancing the winner’s silver dish atop her head — Look, Ma, no hands! — as she sauntered off Centre Court.

Elder sister Venus will directly block Serena Williams’s calendar grand slam path today in a Wimbledon clash that is impossible to watch. Former Wimbledon champion Lindsay Davenport believes the siblings’ first meeting in six years will have even the aficionados squirming in their seats.

Heather Watson came within a whisker of one of the great Wimbledon upsets, but was unable to stop Serena Williams’ march towards the calendar grand slam.

Rafael Nadal became the highest-profile casualty of this year’s Wimbledon after slumping to a 7-5 3-6 6-4 6-4 defeat to dreadlocked German Dustin Brown.

Australia’s Nick Kyrgios kicked up another storm at Wimbledon after the 20-year-old was involved in a heated exchange with an umpire during his victory over Juan Monaco.

Check out our tips for the best of tonight's TV.

Orgies, porn, lesbian flings, they’re all openly discussed. So why can’t we talk about the natural occurrence that is women having a period, asks Marjorie Brennan.

Andy Murray needs to dig deep into his reserves of self-belief to have a chance of navigating a daunting path to a first Australian Open title.

Matthias Bachinger knows New York fairytales are real because he is living one at the US Open.

Petra Kvitova powered into her second Wimbledon final just two weeks after a hamstring injury cast doubt on her involvement.

Laura Robson says Elena Baltacha will be “forever a team-mate” after the former British number one lost her fight against cancer.

Illness scuppered Petra Kvitova’s US Open bid as she was easily beaten by American Aliske Riske in the third round in New York.

Andy Murray is looking forward to getting back on the match court after a crash course in the business of being a defending grand slam champion.

Andy Murray cemented his place in the Wimbledon final today following an electrifying and controversial clash with 6ft 8in Polish player Jerzy Janowicz.

Novak Djokovic is learning to expect the unexpected at Wimbledon but is making sure he keeps his own game under control.

Venus Williams was unable to stop the Maria Sharapova juggernaut tonight as the Russian powered into the fourth round of the Australian Open.

Heather Watson became the first Briton to win a WTA Tour singles title in 24 years by winning a marathon match against Chang Kai-chen of Chinese Taipei in the final of the HP Open in Osaka.

Andy Murray thinks little should be read into his chances of winning the US Open from his performance in his first-round victory over Russia’s Alex Bogomolov last night.

Andy Murray will hope to show how far he has come in 18 months when he takes on Russia’s Alex Bogomolov in the first round of the US Open later today.

As if Andy Murray did not have enough rivals in one of the toughest eras of men’s tennis, now his mind has started playing tricks on him.

Novak Djokovic is targeting Olympic gold in London and his place among the sporting immortals.

Serena Williams eased back into action with a 6-2 6-1 win over American wildcard Nicole Gibbs in the second round of the Bank of the West Classic.

Heather Watson’s infectious personality has won her many friends during Wimbledon this year, and it will play an important part in her path to stardom according to the man who turned Maria Sharapova and Andre Agassi in to champions.

Five-time champion Venus Williams today lost in the opening round at Wimbledon for the first time since the year she made her debut at the tournament.

Andy Murray will begin his Wimbledon campaign against Russia’s Nikolay Davydenko.

Victoria Azarenka led a quintet of leading players in cruising into the second round of the Australian Open today.

Kim Clijsters today shrugged off any concerns over a hip injury and declared herself “ready to go” as she prepares to defend her Australian Open crown.

The Lawn Tennis Association today confirmed Judy Murray as Great Britain’s new Fed Cup captain.

Judy Murray is in talks with the Lawn Tennis Association over becoming the new Fed Cup captain, Press Association Sport understands.

Flavia Pennetta caused the biggest upset of the US Open so far with a gutsy 6-3 3-6 6-4 victory over third seed Maria Sharapova on Arthur Ashe Stadium.

Petra Kvitova became the first reigning Wimbledon champion to lose in the first round of the US Open in the Open era last night.

British number three Heather Watson gave third seed Maria Sharapova a huge scare in the opening round of the US Open before going down 3-6 7-5 6-3 in Arthur Ashe Stadium.

Andy Roddick claimed a straight-sets win over Janko Tipsarevic in the second round of the Regions Morgan Keegan Championships in Memphis today.

Second seed Fernando Verdasco crashed out in the first round at the Regions Morgan Keegan Championships in Memphis today.

British number one Andy Murray has been placed on a Wimbledon semi-final collision course with Rafael Nadal.

Alex Bogdanovic has been overlooked for a wild-card entry into this year’s Wimbledon despite being Britain’s second-highest ranked player.