Federer beat Kyrgios for the third time in as many editions of the competition to take Europe closer to the 13-point victory target
World number one Carlos Alcaraz sailed into the Paris Masters third round with a 6-4, 6-4 win over Yoshihito Nishioka but Rafael Nadal and Daniil Medvedev both slumped to surprise losses on Wednesday.
Federer's hard-fought 6-7 (5), 7-6 (8), 10-7 victory over American John Isner put the Europeans just three points from their victory target and Zverev got them there with a 6-7 (3), 7-5, 10-7 win over Kevin Anderson.
Novak Djokovic sauntered past Spaniard Feliciano Lopez to reach the quarter-finals of the Shanghai Masters on Thursday but Andy Murray had to claw past big-serving American John Isner after losing a first-set tiebreaker.
Friction has dogged the ATP Player Council, whose president is world number one Novak Djokovic, this year since ATP president Chris Kermode failed to gain support for another term.
Kei Nishikori exacted a measure of revenge against Marin Cilic when the Japanese world number five overcame the Croatian in the semi-finals of the Citi Open.
Roger Federer thinks a tie-breaker at 12-12 would be the best compromise following calls for Wimbledon to step into line with the US Open and scrap long deciding sets.
Somdev Devvarman put up a strong fight before going down to world No 31 Fernando Verdasco, while Mahesh Bhupathi lost in the first round at the ATP China Open, in Beijing, on Thursday.
Third seed Stanislas Wawrinka became the latest high-profile casualty at the Italian Open on Thursday when the Swiss was knocked out in the third round by American John Isner.
Homeland favorite Ashleigh Barty and Serbia's Novak Djokovic are the top seeds for the upcoming Australian Open.
The triple grand slam winner, who will take over from Serb Novak Djokovic at the top when the rankings are updated on Monday, still went out on centre court for a practice session in front of a bemused crowd.
Serbian Dusan Lajovic beat Andy Murray at the Miami Open on Wednesday, sending the Briton packing in the first round with his first hardcourt win of the season.
American qualifier Steve Johnson is through to his first ATP Tour semi-final after an emphatic victory at the Delray Beach Open on Friday.
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.
Ronaldo got involved in ball kid duties while watching world number one Novak Djokovic's opening match against John Isner of America as the tennis ball bounced into the stands near the first row where he was sitting.
Reigning champions Novak Djokovic and Serena Williams have been named top seeds for the Australian Open starting on Monday.
Novak Djokovic extended his winning streak at the China Open to 27 matches with a 6-2, 6-2 demolition over big-serving American John Isner on Friday.
Serena Williams returns to the Arthur Ashe Stadium on Sunday
Andy Murray has lost the world number two spot to Roger Federer in the latest ATP rankings released on Monday, after his defeat to Novak Djokovic in the Madrid Masters final.
Nick Kyrgios eased past John Isner 7-5, 7-6(5), 7-6(5) in a duel of big servers to fire Australia to a 2-0 lead over the United States in their Davis Cup quarter-final in Brisbane on Friday.
IMAGES from Day 5 of the Wimbledon Championships at All England Lawn Tennis and Croquet Club on Friday.
India's Somdev Devvarman notched up a stunning 6-3, 7-6 (7/4) victory over defending champion Alexandr Dolgopolov to advance to the pre-quarterfinals of the ATP 500 Citi Open in Washington on Tuesday.
Canadian teenager Eugenie Bouchard swatted aside an out-of-sorts Serena Williams 6-2, 6-1 at the Hopman Cup in Perth on Tuesday.
Davis Cup champions Britain were locked at 1-1 with Japan after the opening two singles of their World Group, first-round tie on Friday after Andy Murray gave the hosts the lead.
Williams reached the final of the mixed team event earlier this year with American compatriot John Isner to kick off a superb season where she won the Australian and French Opens and Wimbledon to take her grand slam singles haul to 21.
Photos from the Wimbledon matches played on Saturday.
World number one Novak Djokovic produced a majestic display in a 7-5, 6-3 victory over American John Isner on Thursday to extend his winning streak in Asia.
World number one Novak Djokovic overpowered Dennis Novak after Dusan Lajovic battled past Gerald Melzer and Serbia went on to a 3-0 win in their opener against Group F hosts Austria in the Davis Cup Finals in Innsbruck on Friday.
World number two Novak Djokovic expects Stanislas Wawrinka and Andy Murray to lift their game at the French Open despite failing to make an impact so far in the clay court season.
Nick Kyrgios has hit back at Bernard Tomic after his compatriot accused him of feigning illness to skip Australia's Davis Cup match against the United States at the weekend.
Will it be Rafa versus Djoko in Sunday's final?
Beaten twice by Nadal in the space of a month, in the Barcelona and Madrid Open finals, Thiem took his revenge by handing the 30-year-old Spaniard a first clay court defeat of the season in Rome.
Andy Murray remained on course for a maiden Paris Masters title after the Briton saw off local favourite Richard Gasquet on Friday to reach the semi-finals with a 7-6(7), 3-6, 6-3 victory.
Rafael Nadal continued his quest for a maiden Paris Masters title when he survived a second set blip to beat Uruguay's Pablo Cuevas
Novak Djokovic was given a scare in his North American hardcourt season opener but managed to prevail with a 7-5, 7-6(3) victory over Luxembourg's Gilles Mueller on Wednesday to reach the third round of the Rogers Cup.
The Australian Open has joined Wimbledon in introducing a final set tiebreak from next year's competition, following the "most extensive" consultation in the event's history, tournament director Craig Tiley said on Friday.
Teeanger Borna Coric completed an unlikely comeback for Croatia as the small Balkan nation beat the United States 3-2 in a Davis Cup quarter-final in Oregon on Sunday.
Denis Shapovalov may not be old enough to drink in New York but is quickly becoming the toast of the Big Apple and the 18-year-old Canadian will again have a chance to light up the U.S. Open when he takes on Briton Kyle Edmund.
Rafael Nadal knows only too well what it's like to miss out on playing at the Olympics, hence he does not understand why so many of his fellow tennis professionals are turning their backs on the Rio Games in August.
Top seed Novak Djokovic made quick work of Tennys Sandgren at the Western and Southern Open on Tuesday, never dropping serve en route to a 6-2, 6-4 win over the American, while big-serving Milos Raonic enjoyed a straight sets win over Andy Murray.