But apart from the tennis stars there were celebrities from all walks of life in London.
Switzerland's challenge at the ATP World Tour Finals melted away like an Alpine glacier in a heatwave on Sunday as Rafa Nadal and Novak Djokovic marched on to the grand finale.
If Stanislas Wawrinka's life depended on the outcome of one tennis match he would surely want Rafa Nadal fighting his corner, and while the stakes were not as high as life or death on Friday the Swiss player's fate was in safe hands.
He won 83 points to Rafael Nadal's 80, hit 30 winners to the Spaniard's 14, struck more aces and generally played the more inspiring tennis, yet it all ended in familiar fashion for Stanislas Wawrinka at the ATP World Tour Finals on Wednesday.
The Indian challenge ended at the Chennai Open tournament with Somdev Devvarman and his Ukrainian partner Sergiy Stakhovsky losing their doubles quarterfinal match to Thai brothers Sanchal and Sonchat Ratiwatana in straight sets.
World No 1 Rafael Nadal broke the stubborn resistance of Poland's Jerzy Janowicz's to win 7-5, 6-4 and reach the last eight of the Paris Masters on Thursday.
French Open champion Stan Wawrinka feels completely comfortable about his failure to break into the unofficial big four of men's tennis despite winning two grand slam titles.
Jerzy Janowicz ripped off his shirt after stunning Jo-Wilfried Tsonga, Juan Martin del Potro visited the Pope and Andy Murray and Stanislas Wawrinka pulled out through injury at the Italian Open on Wednesday.
Top seeded Briton Andy Murray was knocked out of the Australian Open in the fourth round on Sunday, losing 7-5 5-7 6-2 6-4 to German world number 50 Mischa Zverev on Rod Laver Arena.
French Open champion Stanislas Wawrinka will join Andy Murray and Rafael Nadal at this year's pre-Wimbledon warm-up event at Queen's Club, Aegon Championships organisers said.
World number one Novak Djokovic and number two Rafa Nadal set up a mouth-watering men's singles final at the US Open with victories in the semi-finals at Flushing Meadows on Saturday.
Defending champion Andy Murray was the latest Grand Slam winner to be bundled out of the US Open, thrashed in straight sets by Stanislas Wawrinka in a quarter-finals shocker on Thursday.
For someone who is the defending champion at Melbourne Park, Stanislas Wawrinka is remarkably upbeat about the lack of focus falling upon him.
Serena Williams weathered an early challenge from Russian Vera Zvonareva before the former World No 2 crumbled to lose 7-5, 6-0 in the second round of the Australian Open on Thursday.
Holders Czech Republic showed how tenaciously they will fight to retain the Davis Cup on Saturday, while five-times champions Spain avoided being knocked out in the first round for the first time since 2006 by winning their doubles rubber against Canada.
Novak Djokovic quickly got back in the groove after his Australian Open triumph with a crushing defeat of Olivier Rochus as Serbia surged into a 2-0 lead in their Davis Cup, first round tie in Belgium on Friday.
Second seed Janko Tipsarevic of Serbia beat Slovakia's Aljaz Bedene 4-6, 6-2, 6-2 to set up title date with Roberto Bautista Agut at the Aircel ATP Chennai Open Tennis Tournament on Saturday.
Japan's Kei Nishikori will make a third straight appearance at the ATP Tour finals next month after becoming the fifth player to qualify for the season-ending tournament, organisers said on Wednesday.
India's rising tennis player Yuki Bhambri has been awarded a wild card entry in the main draw of the 18th ATP Aircel Chennai Open, from December 31 to January 6. Yuki joins an impressive field, which includes four top 20 players -- Czech Republic's Tomas Berdych (No. 6), Janko Tipsarevic (No. 9), twice winner Marin Cilic (No. 15) and Stanislas Wawrinka (No. 17).
Rafael Nadal claimed a fifth title since his return from injury when the Spanish world number five dismissed 15th-seeded Swiss Stanislas Wawrinka 6-2, 6-4 to win the Madrid Open on Sunday.
Roger Federer looked as sharp as ever in his first match following a two-month layoff as he beat Czech Radek Stepanek 6-3, 6-3 at the Madrid Open on Tuesday.
Former champion Stanislas Wawrinka lived up to his top billing by cruising into the summit clash of the ATP Chennai Open here, where he will take on seventh seed Edouard Roger Vasselin of France.
With the Davis Cup final against France looming, Roger Federer and his Swiss team mate Stanislas Wawrinka on Tuesday played down talk of an internal row, sparked by the pair's fiery clash at the ATP World Tour Finals last week.
For the third time in five years, Rafa Nadal's Australian Open title hopes were ended by injury as he was beaten by Switzerland's Stanislas Wawrinka in the final on Sunday.
Switzerland's Stanislas Wawrinka claimed his first Grand Slam title in dramatic fashion on Sunday when he upset injury-troubled world number one Rafael Nadal in the Australian Open final.
Rafael Nadal calmly continued his bid for a ninth consecutive crown at the Monte Carlo Masters with a 6-2, 6-4 third-round victory over Philipp Kohlschreiber of Germany on Thursday.
After a tight first set, Federer was outplayed and outgunned by the world number one, beaten 7-6(4), 6-3, 6-3 as the Spaniard set up a final with another Swiss, Stanislas Wawrinka.
Rafa Nadal said playing Roger Federer always brings the best out of him after he bludgeoned his way past the Swiss on Friday to reach the final of the Australian Open.
Stanislas Wawrinka edged Tomas Berdych in the tightest of duels to reach his first Grand Slam final at the 36th attempt and set up a possible all-Swiss Australian Open title showdown against Roger Federer.
Defending champion Roger Federer and Rafael Nadal set up a mouth-watering showdown in the BNP Paribas quarter-finals after they battled through tricky fourth-round encounters on Wednesday.
World number one Novak Djokovic and number two Rafa Nadal set up a mouth-watering men's singles final at the US Open with victories in the semi-finals at Flushing Meadows on Saturday.
Roger Federer has confirmed that he will play in Switzerland's Davis Cup playoff tie away to Netherlands at the weekend, the Swiss Tennis Federation said on Tuesday.
Serbia's Novak Djokovic faces the first real test of his US Open defence when he faces Argentina's Juan Martin Del Potro in the quarter-finals at Flushing Meadows on Thursday.
Check out the most shocking upsets at this year's Wimbledon.
Stanislas Wawrinka and his wondrous one-handed backhand managed to pull off a feat no man outside tennis's Big Four had achieved in the past 40 Grand Slams -- to win two major titles
Roger Federer suffered defeat for the second day in succession as United States completed a surprisingly comfortable victory over Switzerland in the Davis Cup World Group first round in Fribourg on Saturday.
Defending doubles gold medallists Roger Federer and Stanislas Wawrinka were stretched by Japanese pairing Kei Nishikoir and Go Saeda on Monday, with the Swiss only winning the thrilling match 6-7, 6-4, 6-4 as darkness fell.
Number two seed Agnieszka Radwanska made a shock first round exit from the women's singles on Sunday while fellow Wimbledon runner-up Britain's Andy Murray made light work of his match against Stanislas Wawrinka to advance to the second round.
Roger Federer is back at Wimbledon a few weeks after winning his seventh title there, opening his bid for Olympic gold against Colombian Alejandro Falla.
Lesser known Spaniard Roberto Bautista Agut, scored the biggest upset of the tournament when he ousted World Number six and top seeded Thomas Berdych (Czech) 7-5, 6-2, 6-3 in 139 minutes to make the semi-final of the Aircel ATP Chennai Open.