Novak Djokovic's gamble to test his injured ankle at the Monte Carlo Masters appeared to be backfiring but he dug his heels in to battle past Russian Mikhail Youzhny 4-6, 6-1, 6-4 in the second round on Wednesday.
Russian Mikhail Youzhny upset top seed Novak Djokovic 7-6, 7-6 on Saturday to reach the final of the World Indoor Tournament. Sixth seed Youzhny, the 2007 champion, next faces Swede Robin Soderling who overcame Nikolay Davydenko of Russia 7-6, 6-4.
The world number one beat unseeded Russian Mikhail Youzhny 6-4, 6-3 in the final.
Local favourite Jo-Wilfried Tsonga set up a mouth-watering semi-final clash with top seed Novak Djokovic of Serbia when he downed Spaniard Feliciano Lopez 6-2, 6-7, 6-4 at the Marseille Open on Friday. World number three Djokovic breezed into the last four with a 6-3, 6-3 win over unheralded German Mischa Zverev.
The 27-year-old Belgian picked out Spaniard Rafael Nadal and Russian Mikhail Youzhny as strong contenders for the Chennai Open.
James Blake beat Russian Mikhail Youzhny in the second singles after American No 1 Andy Roddick outclassed Dmitry Tursunov in the opening rubber.
British second seed Andy Murray saved a matchpoint and overcame a controversial line call to beat Russian Mikhail Youzhny 6-2, 5-7, 7-6 in the semi-finals of the St Petersburg Open.
Top seed Ivan Ljubicic was the only seed to reach the quarter-finals of the Zagreb indoor tournament
In the Dubai Open semis, Federer plays Tommy Haas, while Youzhny takes on Robin Soderling.
The Russian Mikhail Youzhny brushed aside third seed Ivan Ljubicic to win the World Indoor tournament.
The third seeded Indo-Czech pair went down tamely to Russia's Mikhail Youzhny and Serb Nenad Zimonjic in the doubles final at the Qatar Open.
Ivan Ljubicic will take on Robin Soederling in Friday's other semi-final.
Greg Rusedski bid a muted goodbye to Canadian tennis fans with a 6-4, 6-2 loss to Russian Mikhail Youzhny.
Roger Federer beat Russian Mikhail Youzhny at the Dubai Open on Saturday.
They were beaten by Frederic Niemeyer of Canada and Glenn Weiner of the US in the first round at Wimbledon.
Both scored straight-set victories in Friday's semi-finals.
The Argentine joined third seed Rainer Schuettler, fifth seed Mark Philippoussis and sixth seed Tim Henman as a first round loser.
Rafael Nadal, with his troublesome left wrist improving every day, will be eyeing more progress at the US Open on Friday when he bids for a place in the last 16.
News of all that's transpired on and off the tennis courts
Federer looked more relieved than overjoyed when Tiafoe's forehand found the net on match point to keep his hopes of a 20th grand slam title alive.
Unseeded Russian Mikhail Youzhny denied top seed and defending champion David Ferrer a fourth Valencia Open title when he beat the world number three 6-3, 7-5 in the final of the Spaniard's home event on Sunday.
'It was exciting and this is why I came to New York, to go through these emotions'
The 29-year-old former French Open finalist failed the out-of-competition test in February after a urine sample was found to contain letrozole - a substance used in the treatment of breast cancer which is also on the banned drug list of the World Anti-Doping Agency (WADA).
World number one Novak Djokovic survived a second set fightback from Slovak Martin Klizan before winning his opening match at the Miami Open 6-0, 5-7, 6-1.
Sixth seed Andy Murray may feel the most aggrieved of the top contenders in the men's draw.
The 33-year-old Swiss, ranked 261 in the world after two knee surgeries, served solidly throughout a one-sided contest on the slick centre court, easing past an opponent who struggled to cope with Wawrinka's power.
Teenager Taylor Fritz earned the chance to face his hero Roger Federer after the American defeated an unranked French qualifier on Tuesday to reach the second round in Stuttgart. Federer will be playing his first match in nearly a month after recovering from back pain and skipping the French Open, as he ramps up his preparations for Wimbledon. Number 65 Fritz has had time on court with the Swiss legend -- a Wimbledon training session a year ago - but booked his place into the match of his life with a 3-6 7-6 (8/6) 6-1 win over Fabrice Martin on the grass at the Weissenhof Club. Fritz, 18, said he will not worry with nerves when he faces one of the best players on the planet. "I have nothing to lose, there is no pressure on me, I don't think there will be any nerves." The teenager said he had watched and admired Federer as a boy aged 11.
Murray, who is attempting to return to the top of the tennis world after undergoing hip surgery in January, was out of sorts in the first set of the rain-delayed match, losing three service games behind some uncharacteristically soft second serves.
Two-time champion Novak Djokovic thumped Spain's David Ferrer 6-4, 6-2 to march into the last four of the Shanghai Masters on Friday and set up a semi-final showdown with third seed Roger Federer.
Top seed Novak Djokovic has been starved of competitive action at the US Open but on Sunday the World No 1 feasted on unseeded Briton Kyle Edmund in a 6-2, 6-1, 6-4 romp that put him into the quarter-finals.
The winners of the season's first three grand slams Novak Djokovic, Andy Murray and Rafa Nadal put on a masterclass at the Western and Southern Open on Wednesday, strolling into the third round with straight sets wins.
Olympic and Wimbledon champion Andy Murray picked up where he left off in Rio by drubbing Argentina's Juan Monaco to take his place in the third round of the Western & Southern Open in Cincinnati on Wednesday.
Ukrainian fourth seed Elina Svitolina powered into the third round of the U.S. Open with a 6-4, 6-4 win against Russian Evgeniya Rodina on Thursday.
Fourth seed Rafael Nadal showed he is healthy and ready to challenge for a third US Open title as he rolled into the last 16 at Flushing Meadows on Friday with a fist-pumping 6-1, 6-4, 6-2 win over Russian Andrey Kuznetsov.
Rafael Nadal is recovering satisfactorily from appendicitis and will continue a course of antibiotics in a bid to be fit for the remainder of the 2014 season, the World No 2's spokesman said on Thursday.