The International Golf Federation (IGF) and its President Peter Dawson should, in the words of the famous Kool and the Gang hit from 1980, be celebrating good times as the sport prepares to make its Olympic return after a 112-year hiatus from the programme.

declined to compete in Rio - have also decided the Olympics are not for them, despite world number one Novak

Djokovic declaring the Games will be the “fifth Grand Slam”.Australian duo Nick Kyrgios and Bernard

Seven-time champion Roger Federer survived a scare as he fought back from two sets down to beat Marin Cilic of Croatia in an epic semi-final encounter at Wimbledon today.

Canadian, seeded sixth, dispatched American Sam Querrey, the conqueror of top seed and defending champion Novak

Djokovic, 6-4, 7-5, 5-7, 6-4.Tomáš Berdych of the Czech Republic, a Wimbledon finalist in 2010, is also

Tennis legends Roger Federer and Serena Williams cruised into the quarter-finals of Wimbledon today as the second week began with a busy day of last 16 matches.

ominous return towards his best form as he seeks to take advantage of the absence of world number one Novak

Djokovic after his shock defeat last week.World number two Andy Murray now appears his biggest threat

We seem to have spent most of the last year writing continually about what is wrong with sport. Doping and corruption, mostly, as well as the various problems stalling preparations for Rio 2016, which have faced another setback this week after a dead body was found floating ominously close to the Copacabana Bay beach volleyball venue.

squad.”The sun gradually became more consistent as we watched a huge shock play out on Court One, with Novak

Djokovic, the world number one and holder of all four Grand Slam titles, was humbled in four sets by

Gradually, it has gained a more established place on the calendar and leading stars of today, like Novak

Djokovic and Roger Federer, are desperate to gain a so-far-elusive singles title in Rio.Golf must be

Nothing beats a local favourite, I thought, until Querrey started beating Djokovic and people were suddenly

States produced one of the biggest shocks in the history of Wimbledon as he stunned defending champion Novak

Djokovic with a four-set victory to reach the fourth round.

first four games, fortunately for me we had another rain delay and I got to regroup.”The defeat for Novak

Djokovic spelled the end of his pursuit of the calendar Grand Slam ©Getty ImagesDjokovic, the current

six inches, remained calm and moved into a 6-5 lead in the fourth before the rain came down just as Djokovic

fourth set into a tie-break, which the American managed to win to seal a remarkable victory and condemn Djokovic

ImagesJuan Martin Del Potro consoles Stan Wawrinka following his victory ©Getty ImagesWorld number one Novak

Djokovic was another favourite to struggle ©Getty ImagesMore rain disrupted day five of Wimbledon ©Getty

Fourth seed Stanislas Wawrinka of Switzerland crashed out of Wimbledon with a shock second round defeat to Argentina’s Juan Martin del Potro as organisers confirmed matches will take place on the middle Sunday to help ease the growing backlog for the first time since 2004.

face France's 32nd seed Lucas Pouille or American Donald Young.World number one and defending champion Novak

Djokovic has a mountain to climb as he trails American Sam Querrey by two sets to love, with the rain

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A Centre Court crowd cheers world number one Novak Djokovic following his victory ©Getty ImagesAdrian

Mannarino (left) congratulates Novak Djokovic (right) following his victory ©Getty ImagesMarcus Willis

Seven-time Wimbledon winner Roger Federer ended the run of British world number 772 Marcus Willis to reach the third round of the men’s singles tournament at All-England Club today.

Ukraine’s Alexandr Dolgopolov for the right to play Federer.Defending champion and world number one Novak

Djokovic also breezed through as the Serbian eased to a 6-4, 6-3, 7-6 win over France’s Adrian Mannarino.Djokovic

Defending champion Novak Djokovic began his quest for a fifth consecutive Grand Slam title by sweeping

Novak Djokovic will be aiming to move one step closer to a first calendar Grand Slam in 47 years and

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World number one Novak Djokovic completed a career Grand Slam after claiming his first-ever French

Having beaten Murray in the Australian Open final earlier this year, Djokovic could yet match Laver's

With three-time French Open champion Gustavo Kuerten watching from the stands, Djokovic then emulated

It's a very special moment, the biggest of my career," said Djokovic, who has become only the eighth

Andy Murray won the opening set but was powerless to prevent Novak Djokovic completing the career Grand

It proved to be a false dawn, however, as Djokovic begun the turnaround with a smash before snatching

Spain’s Garbine Muguruza upset Serena Williams at Roland Garros in the French Open final to prevent her opponent equalling Steffi Graf’s Open era record Grand Slam haul of 22 titles.

The men’s final between Serbia’s Novak Djokovic and Britain’s Andy Murray is scheduled to take place

Britain's Andy Murray overcame defending champion Stan Wawrinka to book his place in the French Open final for the first time in his career.

triumphed 6-4, 6-2, 4-6, 6-2 against his Swiss opponent to set up a meeting with world number one Novak

Djokovic, who beat Austria’s Dominic Thiem in straight sets earlier in the day.Victory for the 29-year-old

Slam finals and is one victory away from completing the set of all four major titles.Murray has met Djokovic