Spain's third seed Roberto Bautista Agut made a smooth entry into the men's quarter-finals at the ATP Chennai Open tennis tournament with a fluent 6-3, 6-2 win over German Peter Gojowczyk.
After shaking hands with the opponents, the 24-year-old Zverev, ranked third in singles, approached the umpire's chair and hit it repeatedly before heading towards his courtside seat, upset over a line call during the match earlier.
Playing alongside Australian partner Matthew Ebden, the eight-time doubles Grand Slam champion Leander Paes showed his class during a clinical victory over defending champion and second seed Sharan, who was playing alongside New Zealand's Artem Sitak.
The top seed was broken in the second game of the second-round match by the big-serving German but, after going 3-1 behind, the 37-year-old hit back to win five successive games in 13 minutes and take the first set.
Medvedev squandered a two-set lead against Nadal in their previous meeting in the Melbourne final in January, allowing the Spaniard to clinch his 21st Grand Slam title.
World No 2 Rafael Nadal sailed into the quarter-finals of the China Open, his first tournament in 13 weeks, with a 6-3, 6-4 win over German qualifier Peter Gojowczyk on Thursday.
Indian qualifier Sanam Singh brushed aside the challenge of Germany's Nils Langer even as Saketh Myneni failed to recreate the magic of last week as he bowed of the ATP Challenger event in Knoxville, USA.
'My priority will always be, as it is now, my family, my kids and my wife'
The 534th ranked Yuki, who missed out on half the season in 2016 due to a tennis elbow injury, conjured up a 6-1, 6-4 win against his 116th-ranked American opponent.
World No 2 Rafael Nadal brushed aside American Jared Donaldson 6-1, 6-1 and will next face Diego Schwartzman after the Argentine beat Roberto Carballes 6-3, 6-1.
World number one Rafa Nadal will face Frenchman Gael Monfils in the final of the Qatar Open after surviving a tough test against German qualifier Peter Gojowczyk in Doha.
Naomi Osaka, winner of the past two Grand Slam tournaments, has parted ways with her coach Sascha Bajin.
Roger Federer cruised to a 6-4, 6-4 win over Peter Gojowczyk in his first appearance since losing in the Wimbledon quarter-finals.
Defending champion Rohan Bopanna went down fighting in the thrilling doubles opening round game at the third edition of Tata Open Maharashtra, in Pune, on Wednesday. Playing alongside local boy Arjun Kadhe, the ace Indian player Bopanna dominated the game initially. However, after winning the first set convincingly, the Indian duo couldn't manage to continue the momentum further in the games against French pair of Benoit Paire and Antoine Hoang as they lost the match 3-6, 7-5, 10-7.
Konta, Sharapova fall at Rogers Cup in Toronto
Australian Nick Kyrgios blasted 15 aces to blow past Japan's Yoshihito Nishioka 6-2, 7-5 on Thursday and reach the quarter-finals at the Citi Open in Washington.
Argentina's Diego Schwartzman ended a two-year wait for his second ATP tour title as he overpowered an exhausted Fernando Verdasco to win the Rio Open 6-2, 6-3 on Sunday.
The first meeting between Nick Kyrgios and Stefanos Tsitsipas lived up to the hype on Saturday as the Australian saved a match point in a wildly entertaining 6-4, 3-6, 7-6(7) win to reach the Citi Open final.
Former US Open champion Del Potro fired down 11 aces and did not face a break point during the one hour, 33 minutes match.
Images from Day 7 of the 2021 US Open in New York on Sunday.
Under the lights on the stadium court, Williams smashed 39 winners to defeat Azarenka 7-5, 6-3 in a rematch of the 2016 final, which the Belarusian won.
Rafael Nadal swept into the quarter-finals of the Italian Open on Thursday with a ruthless 6-4, 6-1 victory over Canadian teenager Denis Shapovalov. The top seed, who will reclaim the world number one ranking from Roger Federer if he wins his eighth title in Rome, turned in a near-flawless performance, losing only five service points as he honed in on victory in an hour and 22 minutes.
Mischa still finds time to tease 'Sascha', despite his little brother's rapid ascent up the tennis rankings.
Frenchman Benoit lost his temper in the third game of the second set when top seed Tsitsipas halted the match to attend to a broken shoe lace.
Former World No 1 Ana Ivanovic was upset 7-5, 6-4 by 42nd-ranked Karolina Pliskova of the Czech Republic in the second round of the US Open on Thursday.
American qualifier Sachia Vickery completed an astonishing comeback to stun third seed Garbine Muguruza 2-6, 7-5, 6-1 in a second-round win at the BNP Paribas Open in California on Friday.
Czech defending champion Katerina Siniakova fended off Maria Sharapova in a fiercely contested match at the Shenzhen Open on Friday to set up a final with world number one Simona Halep.
Garbine Muguruza's preparations for next week's Australian Open were thrown into disarray when the world number three pulled out of the Sydney International with a thigh injury on Wednesday.
IMAGES from the matches played on Day 2 of the Wimbledon Lawn Tennis Championships at All England Lawn Tennis and Croquet Club on Tuesday.
Bernard Tomic is set to sit out the Australian Open after Tennis Australia (TA) decided not to award him a wildcard to the main draw, the organisers said on Thursday.
The Danish World No 3 ended 2017 with the biggest title of her career in Singapore and returned a day after thrashing Madison Brengle in her season opener to hit 21 winners against eight unforced errors in the 53-minute win over Martic.
A summary of sports events and persons who made news on Thursday
Images from matches played on Day 4 of the Australian Open at Melbourne Park on Thursday