Ruud, who did not take kindly to Kyrgios's tweet then about how he had celebrated the victory, said the hot-headed 24-year-old was "completely crazy" and had behaved like an "idiot" on the court.
World number one Novak Djokovic and number two Andy Murray crashed out of the Western and Southern Open within an hour of each other on Friday, before Rafa Nadal restored order with a win over old rival Roger Federer.
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.
Novak Djokovic claimed his sixth Australian Open title on Sunday as the 28-year-old continues to dominate men's tennis. Here are some of the key statistics for the all-conquering Serb.
With the physical demands of modern-day tennis taking its toll the tournament will start without four of the top 11 in the ATP rankings including defending champion Stan Wawrinka who ended his season early with a knee injury.
American World No 1 Serena Williams will miss three tournaments in the build-up to the US Open due to surgery on her right foot, the WTA Tour said on Saturday.
Rafael Nadal's decision to end his season early means Cilic is actually holding the last berth for the eight-man showdown at London's O2 Arena.
World number one Novak Djokovic blasted past qualifier Alexei Popyrin 6-4, 6-2 to reach the second round of the Japan Open Tennis Championships in Tokyo.
Ask any of the top seeds at next week's U.S. Open who they would least like to play in the early rounds and there will only be one name uttered - Kim Clijsters.
Defending US Open champion Rafael Nadal and twice winner Novak Djokovic are one victory away from renewing their rivalry in the final with both expected to get through their semis on Friday.
Third seeds Leander Paes-Mahesh Bhupathi and fifth seeds Rohan Bopanna-Aisam-ul-haq Qureshi progressed to the pre-quarter-finals in the ATP Western and Southern Open with contrasting victories, in Cincinnati, on Thursday. Paes-Bhupathi got the better of Spaniards Rafael Nadal and Marc Lopez 6-4, 6-2 in the second round. Bopanna-Qureshi beat the Argentine pair of Juan Ignacio Chela-Juan Monaco 6-3, 5-7, 10-4.
Kyrgios earned a suspended six-month ban in September for those transgressions but it only applies to the ATP Tour and not the Davis Cup.
Man of many faces, Medvedev now a Grand Slam finalist
For all their celebrated Grand Slam past, Nadal and Federer have never clashed in a US Open final.
Former world number one Andy Murray won his first ATP tour singles match in nearly nine months with a 6-3, 6-7(6), 6-1 victory over American Tennys Sandgren in the opening round of the Zhuhai Championships.
India is struggling with a second wave of the pandemic with more than 3,00,000 daily new coronavirus cases being reported in the past few days, and hospitals are reeling under a shortage of medical oxygen and beds.
World No 3 Maria Sharapova withdrew on Monday from the end-of-season WTA Championship in Istanbul due to the shoulder injury that also kept her out of the US Open.
World number one Simona Halep pulled out of next week's WTA Finals due to a lower back injury.
Unlike the women's US Open final there was no centre court retirement announcement on Sunday with Roger Federer putting aside the disappointment of losing to Novak Djokovic in the men's final to tell fans he will be back.
World number three Andy Murray has withdrawn from next week's inaugural $5.25 million Shanghai Masters because of a wrist injury, organisers said on Thursday.
Serena Williams remains the 'queen' of women's tennis but don't be surprised if she's no longer No 1 by the end of the year, Martina Navratilova said Thursday.
Ferrero will meet fellow-Spaniard Tommy Robredo, who upset third seed Ivan Ljubicic of Croatia 7-6, 6-2 to reach the semi-finals of the Cincinnati Masters.
The fifth seed became the first major casualty at the Cincinnati Masters, losing in the opening round.
Roger Federer may be recently married and a new father to twin girls, but nothing can distract the Swiss 15-time grand slam champion from the business of being the world's top-ranked player.
Fiery Australian Nick Kyrgios mostly kept his cool en route to a 6-4, 6-2, 6-4 dismantling of Antoine Hoang in their second round clash at the US Open on Thursday. The 28th seed had a row with the umpire even before the match started but avoided a full scale meltdown to reach the third round at Flushing Meadows for the fourth time.
'I had to learn to be patient. I am a different player and a different person than I was three years ago. I still believe I can repeat that 2015-2016 streak when I won four slams in a row, I wouldn't be here if I didn't.'
Former world number one Maria Sharapova avenged her US Open loss to Anastasija Sevastova with a 7-6(3), 5-7, 7-6(7) victory over the Latvian in the China Open first round on Saturday.
Croatia and France were tied at 1-1 after Friday's singles in their Davis Cup semi-final clash in Zadar after Richard Gasquet and Marin Cilic both won their matches.
Roger Federer was proud to regain his World No 1 status last year and wants to stay top of the rankings for as long as he can, he said on Monday.
The top seed edged a 7-6, 7-5 victory over American James Blake in the first round of the Cincinnati Masters.\n
Rafael Nadal sent another message that he has the world number one ranking in his sight as he began his campaign to win his sixth successive title by equalling his most emphatic victory on the ATP Tour. A superb performance of heavy serving and varied follow-ups from the baseline by the Wimbledon and French Open champion overwhelmed Florent Serra 6-0, 6-1 and carried the Spaniard to the third round of the Cincinnati Masters Series.
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.
Andre Agassi served up his traditional late-night feast at the U.S. Open on Monday, beating fellow American Robby Ginepri to move into the second round.
The Australian registered a 6-4, 6-4 victory over Marat Safin in the quarter-finals of the Cincinnati Masters.
Four times now, twice at Wimbledon (2018, 2019) and at the US Open (2018, 2019) Serena Williams has come agonizingly close to that 24th Grand Slam only to fall at the final hurdle.
Roger Federer raced to a 6-1, 6-4 victory over American James Blake to win the Cincinnati Masters.
Roger Federer came close to suffering three successive losses for the first time in five years before scrambling to a 6-7, 7-6, 6-0 win over Robbie Ginepri at the Cincinnati Masters Series on Tuesday. Federer was staring defeat in the face when he lost his serve to go 5-6 down in the second set, but Ginepri, an American ranked down at 64 in the world, did not quite have what it took to close the match out.
Both players burn with heaps of motivation to hoist the winner's trophy at Arthur Ashe Stadium in the last grand moment of the 2015 slam season.
Teenager Andy Murray, the last player to beat Roger Federer, is in awe of the records piled up by the dominant Swiss.
Sania Mirza and Marta Domachowska beat Natalie Grandin and Milagros Sequera 6-4, 6-3 in the first round in Cincinnati
