The seventh-seeded Bulgarian advanced to his eighth ATP World Tour Masters 1000 quarter-final with a 6-3, 7-5 victory over Del Potro, who struggled with the intense heat in the closing stages of the one hour, 39 minute match.
Maria Sharapova recovered from a second-set meltdown to record her first victory at this year's WTA Finals with a 7-5, 6-7(4), 6-2 triumph over Poland's Agnieszka Radwanksa on Friday but the Russian still bowed out of the elite eight-woman tournament.
The third Bonjour India is coming to 33 cities!
Payal Mohanka travelled to Morocco, that magical place where the past and the present don't jostle but instead coexist rather beautifully.
Milestones in the progress of Chinese women's tennis after Li Na, the first Asian to win Grand Slam singles titles, announced her retirement from the sport on Friday.
Images from all the action on Day 4 of the Australian Open in Melbourne on Thursday
IMAGES from the Australian Open on Tuesday.
Venus Williams crushed Frenchwoman Alize Cornet 6-3, 6-0 in the final of the Dubai Championship on Saturday, the veteran American bagging her first singles title since 2012.
Profit of $18 billion was the biggest ever reported by a public company, worldwide.
Siddharth Chauhan, winner of the Satyajit Ray Award
A round-up of all the results from the 17th World Athletic Championships in London
Today is World Environment Day; apt then we look at what contribution some of the best-looking people we feature on our pages make to it!
A summary of sports events and sports persons, who made news on Saturday
If it goes ahead, the combination would create the world's biggest exchange by revenue.
The returning Scot also announced his withdrawal from next week's Rogers Cup in Toronto.
World number one Serena Williams was at her lethal best as she crushed Romanian Simona Halep 6-0, 6-4 to romp into the semi-finals of the Western and Southern Open on Friday.
Federer, who skipped the entire clay court season after winning the Australian Open and claiming titles at Indian Wells and Miami this year, will next play defending champion Florian Mayer who beat Frenchman Lucas Pouille in three sets.
Former World No. 1 Roger Federer was named as the high-profile replacement for the injured Rafael Nadal in Team India in the forthcoming International Premier Tennis League (IPTL), the organisers announced on Monday.
World number five Juan Martin del Potro began his 2014 season with a win, albeit a scrappy one over Frenchman Nicolas Mahut to advance to the quarter-finals of the Sydney International on Wednesday.
Australia's Samantha Stosur failed to allay fears she could be heading for another early exit at her home Grand Slam with a scrappy performance in Hobart while a trio of big names tumbled out of the Sydney International on Monday.
Dhruv Munjal insists that women's tennis needs a golden generation, one that can make matches competitive and viewing more riveting.
A long measure of Grand Slam patience paid off for Peng Shuai of China, who reached the semi-finals of the US Open on Tuesday by routing Swiss teenager Belinda Bencic 6-2, 6-1 in the Flushing Meadows heat.
Obama to push for expansion of Foreign Account Tax Compliance Act.
Nadal, who got a first-round bye, defeated Richard Gasquet 6-3, 6-4 to advance.
Two-times champion Rafa Nadal crashed out in the second round of Wimbledon on Thursday after being out-muscled and out-thought in four sets by an inspired Dustin Brown of Germany.
Top seed Serena Williams shook off a spirited attempt by Agnieszka Radwanska and moved into the final of the Rogers Cup with a 7-6(3), 6-4 victory on Saturday and will meet Romania's Sorana Cirstea, whose surprising run continued when she beat China's Li Na 6-1, 7-6(5).
Indian Aces, comprising heavyweights Roger Federer and retired Pete Sampras, pummeled Singapore Slammers 26-16 for their second straight victory in the IPTL.
Snakes on a subway to polar bears breaking into homes, our world is a truly weird place.
A round-up of our favourite photographs of the week gone by.
Simona Halep and Stan Wawrinka beat the heat with straight-sets wins to reach the third round of a sweltering US Open on Thursday while American hope Jack Sock wilted under the punishing conditions, collapsing on court.
Captain Rani Rampal's clinical strike helped India beat South Africa 1-0 to seal their place in the semi-finals of the women's hockey event at the 2018 Commonwealth Games in Gold Coast, on Tuesday.
We bring you the latest on supermodels, actors, style and much more.
Before it backtracked, Twitter had said Thursday that the change was meant to protect victims of harassment who wanted to filter out abusive messages but feared that the act of blocking a user would prompt retaliation.
PHOTOS from day four of the Wimbledon championships at the All England Lawn Tennis and Croquet Club in London on Friday.
Czech fourth seed Tomas Berdych bulldozed his way into the second round of the French Open by thrashing Japanese qualifier Yoshihito Nishioka 6-0, 7-5, 6-3 on Monday.
World number one Simona Halep saved three match-points before edging past an inspired Lauren Davis 4-6, 6-4, 15-13 in a thrilling marathon to reach the fourth round of the Australian Open on Saturday.
The Women's Tennis Association, which has turned to Asia to grow its sport, is unclear how the International Tennis Premier League is going to pan out. 'We are still learning about it, just as the world and the media is,' said Melissa Pines, Vice-President, Asia-Pacific, on the sidelines of its new announcement to bring the season-ending BNP Paribas WTA Championships to South East Asia for the first time this year.
The general secretary of the world players' union FIFPro has blasted FIFA.
France's Alize Cornet beat a despondent Serena Williams 6-4, 6-4 in the semi-finals of the Dubai Championships on Friday in what the world number 26 described as the biggest win of her career.
Images from the Australian Open matches played on Tuesday.