ATP

BRISBANE, AUSTRALIA - FEBRUARY 02: Alexander Zverev of Germany plays a backhand against Alex de Minaur of Australia during the Davis Cup World Group First Round tie between Australia and Germany at Pat Rafter Arena on February 2, 2018 in Brisbane, Australia. (Photo by Bradley Kanaris/Getty Images)

Alexander Zverev: still warming up on the 2018 ATP World Tour

Mizra Basic wins first career ATP singles title at Sofia Open

Rotterdam Open: Roger Federer back in action after AusOpen

Sofia Open: Stan Wawrinka ousted in the semifinals

LONDON, ENGLAND - NOVEMBER 11: Andy Murray of Great Britain in action watched by his coach Jamie Delgado during a training session prior to the Nitto ATP World Tour Finals at O2 Arena on November 11, 2017 in London, England. (Photo by Clive Brunskill/Getty Images)

Andy Murray picks Serena Williams for Wimbledon 2018

MELBOURNE, AUSTRALIA - JANUARY 18: Sweat flies in the air a Gael Monfils of France serves in his second round match against Novak Djokovic of Serbia on day four of the 2018 Australian Open at Melbourne Park on January 18, 2018 in Melbourne, Australia. (Photo by Scott Barbour/Getty Images)

Gael Monfils, Albert Ramos-Viñolas become frontrunners at Ecuador Open

MELBOURNE, AUSTRALIA - JANUARY 15: Victor Estrella Burgos of Dominican Republic plays a forehand during his first round match against Rafael Nadal of Spain on day one of the 2018 Australian Open at Melbourne Park on January 15, 2018 in Melbourne, Australia. (Photo by Cameron Spencer/Getty Images)

Ecuador Open: defending champion wins opener in Quito

MELBOURNE, AUSTRALIA - JANUARY 22: Novak Djokovic of Serbia plays a forehand in his fourth round match against Hyeon Chung of South Korea on day eight of the 2018 Australian Open at Melbourne Park on January 22, 2018 in Melbourne, Australia. (Photo by Mark Kolbe/Getty Images)

Novak Djokovic: tennis star takes on throwback Thursday

MELBOURNE, AUSTRALIA - JANUARY 28: Roger Federer of Switzerland celebrates victory in the mens final against Marin Cilic of Croatia on day 14 of the 2018 Australian Open at Melbourne Park on January 28, 2018 in Melbourne, Australia. (Photo by Pat Scala/Getty Images)

Roger Federer: photos from his 20th Grand Slam title run

NEWPORT BEACH, CA - JANUARY 23: Kei Nishikori of Japan returns a backhand volley to Dennis Novikov during the first round of the Oracle Challenger Series at the Newport Beach Tennis Club on January 23, 2018 in Newport Beach, California. (Photo by Jeff Gross/Getty Images)

Kei Nishikori: tennis star back in action at Dallas Challenger

MELBOURNE, AUSTRALIA - JANUARY 28: Runner-up Marin Cilic of Croatia speaks at the presentation after losing the 2018 Australian Open Men's Singles Final against Roger Federer of Switzerland on day 14 of the 2018 Australian Open at Melbourne Park on January 28, 2018 in Melbourne, Australia. (Photo by Clive Brunskill/Getty Images)

Marin Cilic: a look at his 2018 Australian Open run in pictures

MELBOURNE, AUSTRALIA - JANUARY 28: Runner-up Marin Cilic of Croatia speaks at the presentation after losing the 2018 Australian Open Men's Singles Final against Roger Federer of Switzerland on day 14 of the 2018 Australian Open at Melbourne Park on January 28, 2018 in Melbourne, Australia. (Photo by Michael Dodge/Getty Images)

ATP World Tour: rankings changes after Australian Open

MELBOURNE, AUSTRALIA - JANUARY 29: Roger Federer of Switzerland poses with the Norman Brookes Challenge Cup after winning the 2018 Australian Open Men's Singles Final, at Government House on January 29, 2018 in Melbourne, Australia. (Photo by Clive Brunskill/Getty Images)

Grand Slams aren’t the only titles that Roger Federer is winning

MELBOURNE, AUSTRALIA - JANUARY 28: Caroline Wozniacki of Denmark poses with the Daphne Akhurst Memorial Cup on an elegant wooden punt ride at the Royal Botanic Gardensafter winning the 2018 Women's Singles Australian Open Championship on January 28, 2018 in Melbourne, Australia. (Photo by Vince Caligiuri/Getty Images)

Federer Wozniacki take the titles at the 2018 Australian Open

MELBOURNE, AUSTRALIA - JANUARY 11: Eugenie Bouchard of Canada plays a forehand against Destanee Aiava of Australia during day three of the 2018 Kooyong Classic at Kooyong on January 11, 2018 in Melbourne, Australia. (Photo by Daniel Pockett/Getty Images)

Eugenie Bouchard reacts to Roger Federer’s AusOpen win

MELBOURNE, AUSTRALIA - JANUARY 28: Roger Federer of Switzerland celebrates victory in the mens final against Marin Cilic of Croatia on day 14 of the 2018 Australian Open at Melbourne Park on January 28, 2018 in Melbourne, Australia. (Photo by Pat Scala/Getty Images)

Roger Federer: continues to amaze on the 2018 ATP World Tour

MELBOURNE, AUSTRALIA - JANUARY 28: Roger Federer of Switzerland acknowledges the fans with the Norman Brookes Challenge Cup after winning the 2018 Australian Open Men's Singles Final against Marin Cilic of Croatia on day 14 of the 2018 Australian Open at Melbourne Park on January 28, 2018 in Melbourne, Australia. (Photo by Darrian Traynor/Getty Images)

Australian Open: Roger Federer makes it 20 Grand Slams and counting

MELBOURNE, AUSTRALIA - JANUARY 18: Novak Djokovic of Serbia serves in his second round match against Gael Monfils of France on day four of the 2018 Australian Open at Melbourne Park on January 18, 2018 in Melbourne, Australia. (Photo by Clive Brunskill/Getty Images)

Novak Djokovic injury: no news is good news right now

MELBOURNE, AUSTRALIA - JANUARY 23: Rafael Nadal of Spain plays a backhand in his quarter-final match against Marin Cilic of Croatia on day nine of the 2018 Australian Open at Melbourne Park on January 23, 2018 in Melbourne, Australia. (Photo by Clive Brunskill/Getty Images)

Rafael Nadal: injury should not sideline No. 1 for long

MELBOURNE, AUSTRALIA - JANUARY 26: Roger Federer of Switzerland waves to the crowd after winning his semi-final match against Hyeon Chung of South Korea on day 12 of the 2018 Australian Open at Melbourne Park on January 26, 2018 in Melbourne, Australia. (Photo by Scott Barbour/Getty Images)

Federer, Cilic: world No. 2 favorite to win 2018 Australian Open

MELBOURNE, AUSTRALIA - JANUARY 26: Roger Federer of Switzerland consoles Hyeon Chung of South Korea after Chung retired injured due to a blistered foot in their semi-final match against on day 12 of the 2018 Australian Open at Melbourne Park on January 26, 2018 in Melbourne, Australia. (Photo by Mark Kolbe/Getty Images)

Hyeon Chung: dream run comes to an end at AusOpen

MELBOURNE, AUSTRALIA - JANUARY 25: Marin Cilic of Croatia plays a forehand in his semi-final match against Kyle Edmund of Great Britain on day 11 of the 2018 Australian Open at Melbourne Park on January 25, 2018 in Melbourne, Australia. (Photo by Scott Barbour/Getty Images)

Marin Cilic: Australian Open run could lead to huge 2018 tour

MELBOURNE, AUSTRALIA - JANUARY 24: Roger Federer of Switzerland celebrates winning his quarter-final match against Tomas Berdych of the Czech Republic on day 10 of the 2018 Australian Open at Melbourne Park on January 24, 2018 in Melbourne, Australia. (Photo by Clive Brunskill/Getty Images)

Roger Federer strikes again, into AusOpen semifinals

MELBOURNE, AUSTRALIA - JANUARY 23: Rafael Nadal of Spain waves to the crowd as he walks off the court after retiring injured during the fifth set in his quarter-final match against Marin Cilic of Croatia on day nine of the 2018 Australian Open at Melbourne Park on January 23, 2018 in Melbourne, Australia. (Photo by Clive Brunskill/Getty Images)

Rafael Nadal’s two most meaningful matches in 2018

MELBOURNE, AUSTRALIA - JANUARY 21: Nick Kyrgios of Australia plays a backhand against Grigor Dimitrov of Bulgaria in his fourth round match against Nick Kyrgios of Australia on day seven of the 2018 Australian Open at Melbourne Park on January 21, 2018 in Melbourne, Australia (Photo by Darrian Traynor/Getty Images)

Nick Kyrgios: a new player on the 2018 ATP World Tour?

MELBOURNE, AUSTRALIA - JANUARY 23: Kyle Edmund of Great Britain celebrates winning his quarter-final match against Grigor Dimitrov of Bulgaria on day nine of the 2018 Australian Open at Melbourne Park on January 23, 2018 in Melbourne, Australia. (Photo by Scott Barbour/Getty Images)

Kyle Edmund continues to amaze at 2018 Australian Open

MELBOURNE, AUSTRALIA - JANUARY 23: Rafael Nadal of Spain shows his dejection in his quarter-final match against Marin Cilic of Croatia on day nine of the 2018 Australian Open at Melbourne Park on January 23, 2018 in Melbourne, Australia. (Photo by Clive Brunskill/Getty Images)

Rafael Nadal injury could clear 2018 path for Roger Federer

MELBOURNE, AUSTRALIA - JANUARY 22: Roger Federer of Switzerland plays a forehand in his fourth round match against Marton Fucsovics of Hungary on day eight of the 2018 Australian Open at Melbourne Park on January 22, 2018 in Melbourne, Australia. (Photo by Scott Barbour/Getty Images)

Roger Federer jokes about ‘playing in outer space’