World number one Novak Djokovic continued his dominance of Kei Nishikori with a 6-3, 7-5 victory in the final of the Rogers Cup in Toronto on Sunday.
Rafael Nadal is one victory away from returning to the top of the world rankings after surviving a huge scare to beat Italian Fabio Fognini in the quarter-finals of the China Open on Friday.
Cilic's booming serve lacked its usual accuracy and Germany's Kohlschreiber was able to control long rallies, pushing the towering Croatian around the court with pinpoint groundstrokes en route to a quick victory.
Roger Federer was made to work hard by Fernando Verdasco before beating the Spanish veteran 6-3, 3-6, 6-3 on Wednesday to reach the quarter-finals of the Dubai Duty Free Tennis Championships.
Thursday's match was just Venus Williams's seventh of the year and first since January's Australian Open, where she fell to Simona Halep in the round of 32.
World No 1 Novak Djokovic and Serena Williams advanced safely to the next round of the US Open on Saturday but the women's draw saw yet another big upset as Wimbledon winner Petra Kvitova was sent packing by a 145th-ranked qualifier.
Soon after he won his historic US Open title, Paes said more than technique it is his never-say-die spirit that has got him success.
India's veteran Leander Paes and his Swiss partner Martina Hingis stayed on course for their third Grand Slam of the year after advancing to the mixed doubles final at the US Open, in New York, on Wednesday night.
Rafael Nadal and Roger Federer will set aside their long-time rivalry when they play for Europe against the rest of the world in the inaugural Laver Cup tournament which starts on Friday.
It was end of US Open campaign for Somdev Devvarman and Mahesh Bhupathi after they lost their respective hard-fought matches even as Rohan Bopanna had a mixed day.
Eugenie Bouchard's mid-season nosedive continued on Tuesday as the Canadian was swept aside 6-3 6-4 by Croatian qualifier Donna Vekic despite having home advantage and the backing of an excited crowd in a first round clash at the Rogers Cup.
Andy Murray looked every bit the world number one as he gave a Russian teenager Andrey Rublev a lesson in Grand Slam tennis to reach the third round of the Australian Open with a 6-3, 6-0, 6-2 win.
Australian Nick Kyrgios caused more on-court controversy in his defeat by unseeded German Mischa Zverev at the Shanghai Masters on Wednesday with a listless performance that could land him in trouble with the ATP.
Twice Shanghai Masters champion Roger Federer was far from his best against Spain's Roberto Bautista Agut but did enough to reach the quarter-finals with a 6-3, 2-6, 6-4 win on Thursday.
Coming into the tournament 21st in the WTA rankings, the Czech won 3-6, 6-3, 6-4 in two hours and 16 minutes to add to her triumph in St Petersburg earlier this month.
Andy Murray overcame a slow start and a third set service break to beat Taro Daniel 1-6, 6-2, 6-4 in the first round of Indian Wells on Friday and notch his 700th career win.
Women's tennis's biggest names still remaining at the US Open take centre stage on Sunday with Grand Slam winners Maria Sharapova, Venus Williams, Garbine Muguruza and Petra Kvitova all appearing on Arthur Ashe Stadium.
Big-serving Canadian Milos Raonic fired 19 aces to topple Sam Querrey 6-4, 6-4 and set up a second-round clash with either Dan Evans or Russian 10th seed Andrey Rublev.
Former world number one Serena Williams looked sharp in her return to the hardcourts after a week-long break, soundly defeating Daria Gavrilova 6-1, 6-2 on Monday to advance to the second round of the Cincinnati Masters.
'He's one of those players that are dangerous for everybody'
Federer, who skipped the French Open this year to give his body time to recover from his incredible exploits in the first half of the season which he began by winning an 18th major at the Australian Open, said he hoped Murray would not live to regret battling through the pain barrier.
Top men's doubles player Jamie Murray has called for an end to the ATP Tour's scoring system in the format and says there is widespread support for it to be changed.
Roger Federer returned from a month-long layoff with a 6-4, 6-4 second round victory over Roberto Bautista Agut on Tuesday at the Western and Southern Open in Cincinnati.
Stan Wawrinka outlasted Frances Tiafoe over three sets to set up an all-home quarter-final against compatriot and fellow veteran Roger Federer at the Swiss Indoors on Thursday. The 34-year-old Waewrinka, who won 6-3, 3-6, 7-5, will attempt to beat Federer for only the fourth time when they meet for their 27th clash on Friday in a dream tie for the Basel crowd.
He leads the men's seedings ahead of defending champ Roger Federer, with Bulgarian Grigor Dimitrov seeded third.
American No 1 John Isner wants injured players to be compensated with first round prize money at Grand Slam to lower the number of early withdrawals.
Roger Federer put his global army of "Fed-Head" fans through the wringer for four nerve-shredding sets before he kept alive his pursuit of a record eighth Wimbledon title with a 6-7(4) 4-6 6-3 7-6(9) 6-3 win over Marin Cilic the quarter-finals on Wednesday. Novak Djokovic's shock third round exit had raised hopes that this could be the week when the Swiss finally ends his four-year hunt for an 18th grand slam title, as the Serb had been the only man to beat him at the majors over the past year.
Aryna Sabalenka of Belarus and Paula Badosa of Spain, earned second-round wins
Not since Croatian Goran Ivanisevic beat Australian Pat Rafter in 2001 has there been a final featuring two players adopting the serve-and-volley style once deemed mandatory.
Roger Federer and Rafael Nadal powered to third-round wins at the BNP Paribas Open at Indian Wells on Tuesday to set up a mouth-watering rematch of their recent Australian Open final.
Raducanu stormed into the third round of the Cincinnati Open
The Australian fell to the floor in celebration after clinching the victory, before sticking a finger behind his ear and asking the raucous crowd to cheer louder.
The 'Big Four' has become a 'Big Three' with the shock exit of Rafael Nadal, and the remaining trio of Roger Federer, Andy Murray and Novak Djokovic will all be aiming to prove their elite credentials in Wednesday's quarter-finals.
Congratulating tennis stars Sania Mirza and Leander Paes, who won Grand Slams in the women's doubles and mixed doubles respectively at the US Open, former India cricket captain Rahul Dravid on Monday said that both are "huge inspiration" for aspiring sportspersons in the country.
Summary of sports events and persons who made news on Thursday
PHOTOS from day four of the Wimbledon championships at the All England Lawn Tennis and Croquet Club in London on Saturday
The Frenchman, seeded five, had no answer to left-hander Muller's swinging serve as he bowed out 6-4, 6-4.
Croatian Cilic, who lost last year's final to Roger Federer, underlined his credentials for another Grand Slam title bid to add to his U.S. Open triumph in 2014.
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.
Venus Williams staged a spirited comeback to down third seed Petra Kvitova 4-6, 7-5, 6-4 and reach the third round of the BNP Paribas Open in Indian Wells on Saturday.