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.
Summary of sports events and persons who made news on Tuesday
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.
Here's your weekly digest of the most weird, true and funny news from the across the world.
A summary of sports events and sports persons, who made news on Wednesday.
Jelena Ostapenko became only the sixth female Grand Slam champion to lose in the opening round of their title defence on Sunday when she lost to Kateryna Kozlova at the French Open.
Dhruv Munjal insists that women's tennis needs a golden generation, one that can make matches competitive and viewing more riveting.
The returning Scot also announced his withdrawal from next week's Rogers Cup in Toronto.
Garbine Muguruza reached the French Open quarter-finals for the third year in a row when a solid display earned her a 6-3, 6-4 victory against former champion Svetlana Kuznetsova.
A summary of sports events and persons who made news on Tuesday.
Here is a flashback of the top moments from the just concluded quadrennial Games...
A day after celebrating his 36th birthday, Federer played the aggressive game that has propelled him to five titles, including two grand slams, this year, attacking the net and rocketing second serves.
Roger Federer and Maria Sharapova glittered under the Rod Laver Arena lights on Monday, restoring order at the Australian Open after eight women's seeds crashed out in the afternoon sun on a manic opening day. The evergreen Federer strolled into the second round with a classy 6-4, 6-2, 7-5 win over Taiwan's Lu Yen-Hsun before fellow-second seed Sharapova ruined Croatian qualifier Petra Martic's 24th birthday with a 6-4, 6-1 victory.
A summary of sports events and sports persons, who made news on Sunday.
Check out the gold medallists on Day 11 of the 2016 Olympic Games in Rio de Janeiro on Tuesday.
Images from Day 3 of the 2016 Australian Open in Melbourne, on Wednesday
Top seed Agnieszka Radwanska's title defence at the Sydney International lasted just 92 minutes when she was dumped out of the second round by Bethanie Mattek-Sands on Tuesday.
Photos from French Open matches played at the Roland Garros on Friday
Croatian ninth seed Marin Cilic reached the Wimbledon quarter-finals for the third year running after Kei Nishikori quit with a rib injury midway through their fourth round match on Monday.
From Aurangzeb to Sangh Parivar, the year 2016 offers plenty of hope in historical and modern literature.
It's a wrap! Rediff.com presents a roundup of the World Gymnastics Championships, Glasgow, which were held from October 23 to November 1.
Dani Alves has blamed the media for Brazil's unsuccessful World Cup campaign but conceded that the team did not prepare properly ahead of the humiliating 7-1 defeat by Germany in the semi-final.
Second seed Garbine Muguruza, bidding to add the Wimbledon crown to her French Open title, was sensationally beaten in the second round on Thursday by Slovakian qualifier Jana Cepelova 6-3, 6-2 in the shock of the tournament so far.
Portugal's football team captain Cristiano Ronaldo's agent has revealed that the forward would play out the rest of his career at Real Madrid, shunning reports of a return to Manchester United.