Serbian third seed Novak Djokovic survived a tough challenge from big-serving Croatian teen-ager Marin Cilic 6-7, 7-5, 6-4, 7-6 in a late-night slugfest to reach the fourth round of the U.S. Open on Sunday.
The Croatian helped Djokovic claim nine of his 24 Grand Slam titles before leaving his team in March and on Friday was hired to coach world number five Rybakina for the 2025 season.
Top-seeded Marin Cilic saved three match points to narrowly avoid becoming the latest upset at the Memphis International tournament on Thursday.
Defending champion Marin Cilic had to battle hard before beating Kazakhstan's Mikhail Kukushkin 6-7, 7-6, 6-3, 6-7, 5-1 in their 3rd round match of the US Open on Friday.
U.S. Open champion Marin Cilic is a firm believer in the new International Premier Tennis League (IPTL), insisting the four-city mixed team tournament is a perfect addition to his preparations for the new season.
Defending champion Marin Cilic of Croatia bested Switzerland's Stanislas Wawrinka 7-6 (2), 7-6 (3) on Sunday to win the 2010 Chennai Open for a second straight year.
Japan's Kei Nishikori cut short Marin Cilic's title defence with an impressive 4-6, 7-6 (0), 6-2 win on Monday.
Cilic, eliminated after two three-set losses, was hoping to end his year on a high in the city where his Wimbledon dream was ended in this year's final by Federer - the Croatian sobbing on court after suffering blisters.
Marin Cilic relied on a dominant serve to beat fellow Croat Ivan Ljubicic 6-4, 6-3 and reach the China Open final on Saturday.
Croatian Marin Cilic reached his first Wimbledon final with a 6-7(6), 6-4, 7-6(3), 7-5 victory over American Sam Querrey on Friday.
Novak Djokovic reached the Wimbledon quarter-finals for the 16th time but it proved a hard day's work at his Centre Court office.
Marin Cilic and Kei Nishikori will meet in the semi-finals at the Citi Open in Washington on Saturday, their first encounter since the final of last year's US Open.
Four more performances like that at the O2 Arena this week should guarantee Andy Murray will end 2016 leading the pack.
'I would say winning the US Open has helped me for all these grand slams I have played so far, and I believe the rest of my career' 'It's great for me to hear that even he, and a lot of players around, even ex-players, when they were looking before the tournament started, that they were seeing me as a player that could go quite deep (into the tournament)'
Tomas Berdych rebounded from an opening defeat to revive his hopes at the ATP World Tour Finals by demolishing Croatia's Marin Cilic at the O2 Arena on Wednesday.
Sealing the match with a thumping serve, the 2014 US Open champion will bid for his second grand slam title against Friday's winner of Roger Federer and South Korea's rising star Chung Hyeon.
Strong title contenders Marin Cilic and Stanislas Wawrinka were knocked out of the Chennai Open by their respective opponents on Friday.
World number 13 Marin Cilic will return to India to defend his Chennai Open title as the Croat has confirmed his participation in the January 5 to 11 event.
World number two Rafa Nadal's comeback came to a shuddering halt on Saturday when he was crushed 6-1, 6-3 by Croatian Marin Cilic in the semi-finals of the $6.6 million China Open.
World number six Marin Cilic will be the biggest international star in the singles field at the upcoming Chennai Open, the only ATP 250 tournament in India.
Defending champion Marin Cilic thrashed Janko Tipsarevic 6-1, 6-3 on Saturday to move into the final of the Chennai Open.
Marin Cilic, thrashed by Roger Federer in straight sets in Sunday's Wimbledon final, said he had been suffering from a blister in his foot during the showpiece clash.
Third-seeded Croatian Marin Cilic strolled into the final of the Chennai Open on Saturday after demolishing Spaniard Marcel Granollers 6-4 6-3.
Two-time former singles champion and world No.15 Marin Cilic and Stanislas Wawrinka are set to take part in the 18th Aircel Chennai Open, to be held from December 31 to January 6.
Switzerland's Roger Federer claimed a record-equalling sixth Australian Open title with a 6-2, 6-7(5), 6-3, 3-6, 6-1 victory over Croatia's Marin Cilic on Sunday.
Jurgen Melzer upset top seed Marin Cilic 6-4, 6-3 in the final of the Vienna Open on Sunday to become the first home player to win the tournament for 21 years.
Somdev Devvarman registered the biggest win of his fledgling career when the wiry Indian upstaged sixth seeded Marin Cilic in straight sets in the second round of the USD 1.4 million Legg Mason Tennis Classic in Washington.
Laura Siegemund entered the record books with her defeat of fifth-seeded Xiyu Wang of China in four hours, nine minutes at the Thailand Open in Hua Hin on Wednesday.
The doping suspension of Croatian tennis player Marin Cilic has reportedly been reduced from nine months to four months by the Court of Arbitration for Sport (CAS), making him eligible to return to playing from October 26 this year.
Marin Cilic beat unseeded German Michael Berrer 6-4, 6-7, 6-3 on Sunday to win the Zagreb Indoors tournament for the second successive year and clinch his fifth career title.
Reader Mamta Nahar sent us these pictures from Chennai.
Somdev Devvarman's sensational run at the Chennai Open met with an anti-climactic end as the Indian lost the fiercely fought singles final to world number 27 and third seed Marin Cilic of Croatia 4-6, 6-7 (3) in Chennai on Sunday.
Andy Murray moved one step closer to ending Britain's 74-year wait for a men's Grand Slam champion when he beat Croatia's Marin Cilic 3-6, 6-4, 6-4, 6-2 in their Australian Open semi-final on Thursday.
The Russian lost 6-3, 6-4 to Croatia's Marin Cilic in the second round of the China Open.
Two-time winner Marin Cilic of Croatia has been ruled out of the 2012 Chennai Open, India's only ATP World Tour event, due to an injury.
Ramkumar played with a lot of passion against the 2014 US Open champion and 2017 Wimbledon finalist before bowing out with a 4-6, 3-6 second round defeat.
Andy Murray dodged rain showers to rush to a 7-5, 6-2, 6-3 win over Croatian Marin Cilic and reach the Wimbledon quarter-finals on Tuesday.
Marin Cilic struggled early before finding his rhythm as the top seed ground out a 4-6, 6-2, 6-3 victory over friend and Croatian compatriot Ivan Dodig in the first round of the Memphis International on Monday.
Marin Cilic began his title defence at the Chennai Open in a comprehensive manner with a 6-2, 6-4 demolition of Igor Kunitysn. The Croat took a little over an hour to tame the out of form Russian.
Two-time champion Marin Cilic of Croatia kept his hopes alive, coming from behind to beat Sergiy Stakhovsky of Ukraine 4-6, 6-2, 6-2 and make the quarter-finals of the Aircel Chennai Open ATP tennis tournament, in Chennai, on Thursday.