ATP

ROME, ITALY - MAY 16: Grigor Dimitrov of Bulgaria serves in his match against Kei Nishikori of Japan during day 4 of the Internazionali BNL d'Italia 2018 tennis at Foro Italico on May 16, 2018 in Rome, Italy. (Photo by Dean Mouhtaropoulos/Getty Images)

Grigor Dimitrov splashes out against Kei Nishikori at Italian Open

Nadal, Djokovic and Shapovalov prevail as Thiem, Anderson and Sock crash out in Italian Open

Roger Federer Reclaims World No. 1 Ranking Despite Time Off

Madrid Open: Alexander Zverev shocks field with another Masters 1000 title

MADRID, SPAIN - MAY 09: Novak Djokovic (l) of Serbia shakes hands with Kyle Edmund of Great Britain after their second round match during day five of the Mutua Madrid Open at La Caja Magica on May 9, 2018 in Madrid, Spain. (Photo by Clive Brunskill/Getty Images)

Kyle Edmund UPSETS Novak Djokovic at Madrid Open

PARIS, FRANCE - JUNE 02: Rafael Nadal of Spain slides across the clay to play a backhand during his men's singles third round match against Eduardo Schwank of Argentina during day seven of the French Open at Roland Garros on June 2, 2012 in Paris, France. (Photo by Clive Brunskill/Getty Images)

Madrid Open 2018: Rafael Nadal Off To Winning Start

MUNICH, GERMANY - MAY 05: Alexander Zverev of Germany plays a serves during the semifinal match against Hyeon Chung of Korea on day 8 of the BMW Open by FWU at MTTC IPHITOS on May 5, 2018 in Munich, Germany. (Photo by Alexander Hassenstein/Getty Images for BMW)

Alexander Zverev defeats Kohlschreiber in all-German final

MONTE-CARLO, MONACO - APRIL 16: Novak Djokovic of Serbia celebrates after his singles match against Dusan Lajovic of Serbia during day two of ATP Masters Series: Monte Carlo Rolex Masters at Monte-Carlo Sporting Club on April 16, 2018 in Monte-Carlo, Monaco. (Photo by Julian Finney/Getty Images)

Djokovic, Nishikori early meeting at 2018 Madrid Open

MONTE-CARLO, MONACO - APRIL 20: Marin Cilic of Croatia in action against Kei Nishikori of Japan during day six of the ATP Masters Series Monte Carlo Rolex Masters at Monte-Carlo Sporting Club on April 20, 2018 in Monte-Carlo, Monaco. (Photo by Julian Finney/Getty Images)

Marin Cilic Married, Drops First ATP Singles Match Back

INDIAN WELLS, CA - MARCH 13: Gael Monfils of France returns a shot to Pierre-Hugues Herbert of France during the BNP Paribas Open at the Indian Wells Tennis Garden on March 13, 2018 in Indian Wells, California. (Photo by Matthew Stockman/Getty Images)

Gael Monfils: Bavarian International Is Chance For Momentum

BARCELONA, SPAIN - APRIL 25: Rafael Nadal of Spain plays a forehand against Roberto Carballes Baena of Spain in their game during day three of the Barcelona Open Banc Sabadell on April 25, 2018 in Barcelona, Spain. (Photo by Alex Caparros/Getty Images)

Barcelona Open: Watch Rafael Nadal Celebrate Per Usual

MONTE-CARLO, MONACO - APRIL 21: Alexander Zverev of Germany goes for a smash against Kei Nishikori of Japan during day seven of the ATP Masters Series Monte Carlo Rolex Masters at Monte-Carlo Sporting Club on April 21, 2018 in Monte-Carlo, Monaco. (Photo by Julian Finney/Getty Images)

Alexander Zverev Leads Talented Field At Bavarian International

BARCELONA, SPAIN - APRIL 29: Rafael Nadal of Spain poses with the trophy after his victory against Stefanos Tsitsipas of Greece in their final match during day seven of the Barcelona Open Banc Sabadell on April 29, 2018 in Barcelona, Spain. (Photo by Alex Caparros/Getty Images)

Barcelona Open: Rafael Nadal Does It Again, Wins 11th Title

MONTE-CARLO, MONACO - APRIL 19: Novak Djokovic of Serbia in action against Dominic Thiem of Austria during his men's singles match on day five of the Rolex Monte-Carlo Masters at Monte-Carlo Sporting Club on April 19, 2018 in Monte-Carlo, Monaco. (Photo by Julian Finney/Getty Images)

Novak Djokovic Training, Focusing On 2018 Future Ahead

MONTE-CARLO, MONACO - APRIL 22: Kei Nishikori of Japan plays a backhand in his match against Rafael Nadal of Spain during day eight of ATP Masters Series: Monte Carlo Rolex Masters at Monte-Carlo Sporting Club on April 22, 2018 in Monte-Carlo, Monaco. (Photo by Julian Finney/Getty Images)

ATP World Tour: Favorites in Men’s Singles After April

MONTE-CARLO, MONACO - APRIL 18: Rafael Nadal of Spain serving during his Mens Singles match against Aljaz Bedene of Slovenia at Monte-Carlo Sporting Club on April 18, 2018 in Monte-Carlo, Monaco. (Photo by Julian Finney/Getty Images)

Rafael Nadal Bests David Goffin, Chance At Another Barcelona Title

BARCELONA, SPAIN - APRIL 28: Rafael Nadal of Spain plays a forehand against David Goffin of Belgium in their semi-final match during day six of the Barcelona Open Banc Sabadell on April 28, 2018 in Barcelona, Spain. (Photo by Alex Caparros/Getty Images)

Can Rafael Nadal be stopped?

MONTE-CARLO, MONACO - APRIL 17: Dominic Thiem of Austria hits a backhand return during his Mens Singles match against Andrey Rublev of Russia at Monte-Carlo Sporting Club on April 17, 2018 in Monte-Carlo, Monaco. (Photo by Julian Finney/Getty Images)

Dominic Thiem Ousted During Barcelona Quarterfinals

BARCELONA, SPAIN - APRIL 24: David Goffin of Belgium plays a backhand against Marcel Granollers of Spain in their match during day three of the Barcelona Open Banc Sabadell on April 24, 2018 in Barcelona, Spain. (Photo by Alex Caparros/Getty Images)

David Goffin: Chances Against World No. 1 Rafael Nadal

MONTE-CARLO, MONACO - APRIL 19: Novak Djokovic of Serbia in action against Dominic Thiem of Austria during his men's singles match on day five of the Rolex Monte-Carlo Masters at Monte-Carlo Sporting Club on April 19, 2018 in Monte-Carlo, Monaco. (Photo by Julian Finney/Getty Images)

Novak Djokovic Splashes Out Of 2018 Barcelona Open

MONTE-CARLO, MONACO - APRIL 20: Grigor Dimitrov of Bulgaria in action in his singles match against David Goffin of Belgium during say six of ATP Masters Series: Monte Carlo Rolex Masters at Monte-Carlo Sporting Club on April 20, 2018 in Monte-Carlo, Monaco. (Photo by Julian Finney/Getty Images)

Grigor Dimitrov Poised For 2018 Barcelona Open Run

MONTE-CARLO, MONACO - APRIL 19: Dominic Thiem of Austria serves against Novak Djokovic of Serbia during day five of the Rolex Monte-Carlo Masters at Monte-Carlo Sporting Club on April 19, 2018 in Monte-Carlo, Monaco. (Photo by Julian Finney/Getty Images)

Dominic Thiem Survives Meeting With Jaume Munar

BARCELONA, SPAIN - APRIL 25: Rafael Nadal of Spain plays a forehand against Roberto Carballes Baena of Spain in their game during day three of the Barcelona Open Banc Sabadell on April 25, 2018 in Barcelona, Spain. (Photo by Alex Caparros/Getty Images)

Rafael Nadal, Ten-Time Champ, Opens Barcelona On Top

MONTE-CARLO, MONACO - APRIL 21: Alexander Zverev of Germany in action against Kei Nishikori of Japan during day seven of the ATP Masters Series Monte Carlo Rolex Masters at Monte-Carlo Sporting Club on April 21, 2018 in Monte-Carlo, Monaco. (Photo by Julian Finney/Getty Images)

Alexander Zverev Moves In Rankings To Revisit Career High

MONTE-CARLO, MONACO - APRIL 19: Novak Djokovic of Serbia reacts during his men's singles match against Dominic Thiem of Austria on day five of the Rolex Monte-Carlo Masters at Monte-Carlo Sporting Club on April 19, 2018 in Monte-Carlo, Monaco. (Photo by Julian Finney/Getty Images)

Novak Djokovic: Returning Slower Than Rafael Nadal

INDIAN WELLS, CA - MARCH 13: Jack Sock celebrates while playing Feliciano Lopez of Spain during the BNP Paribas Open at the Indian Wells Tennis Garden on March 13, 2018 in Indian Wells, California. (Photo by Matthew Stockman/Getty Images)

Jack Sock Must Break Slump In ATP Tour Middle Months

MONTE-CARLO, MONACO - APRIL 22: Kei Nishikori of Japan plays a backhand in his match against Rafael Nadal of Spain during day eight of ATP Masters Series: Monte Carlo Rolex Masters at Monte-Carlo Sporting Club on April 22, 2018 in Monte-Carlo, Monaco. (Photo by Julian Finney/Getty Images)

Kei Nishikori: Strong Showing For Tennis Superstar

KEY BISCAYNE, FL - MARCH 24: Roger Federer of Switzerland serves against Thanasi Kokkinakis of Australia in their second round match during the Miami Open Presented by Itau at Crandon Park Tennis Center on March 24, 2018 in Key Biscayne, Florida. (Photo by Clive Brunskill/Getty Images)

Roger Federer Foundation: Swiss Great Visits Zambia