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MONTE-CARLO, MONACO - APRIL 15: David Goffin of Belgium plays a forehand against Guido Andreozzi of Argentina in their first round match during day two of the Rolex Monte-Carlo Masters at Monte-Carlo Country Club on April 15, 2019 in Monte-Carlo, Monaco. (Photo by Clive Brunskill/Getty Images)

Estoril Open: David Goffin knocks out 2018 champion João Sousa

Can Roger Federer win the 2019 French Open men’s singles title?

Alexander Zverev off to another winning start in Munich

Should Dominic Thiem become the favorite at the French Open?

BARCELONA, SPAIN - APRIL 27: Rafael Nadal of Spain looks down during his semifinal match against Dominic Thiem of Austria during day six of the Barcelona Open Banc Sabadell at Real Club De Tenis Barcelona on April 27, 2019 in Barcelona, Spain. (Photo by Alex Caparros/Getty Images)

WATCH Dominic Thiem complete a major upset at the Barcelona Open

MONTE-CARLO, MONACO - APRIL 18: Dominic Thiem of Austria shows his dejection during his straight set defeat against Dusan Lajovic of Serbia in their third round match during day five of the Rolex Monte-Carlo Masters at Monte-Carlo Country Club on April 18, 2019 in Monte-Carlo, Monaco. (Photo by Clive Brunskill/Getty Images)

Can Dominic Thiem take the title at the Barcelona Open?

BARCELONA, SPAIN - APRIL 25: Dominic Thiem of Austria plays a forehand against Jaume Munar of Spain during the round of 16 match on day two of the Barcelona Open Banc Sabadell at Real Club De Tenis Barcelona on April 25, 2019 in Barcelona, Spain. (Photo by David Ramos/Getty Images)

Barcelona Open: Upsets, Updates, and Predictions

BARCELONA, SPAIN - APRIL 23: Alexander Zverev of Germany plays a backhand against Nicolas Jarry of Chile in their Men's round of 32 match during day two of the Barcelona Open Banc Sabadell at Real Club De Tenis Barcelona on April 23, 2019 in Barcelona, Spain. (Photo by David Ramos/Getty Images)

2019 ATP Tour throwing roadblocks at Alexander Zverev

BARCELONA, SPAIN - APRIL 24: Rafael Nadal of Spain plays a backhand against Leonardo Mayer of the Argentina during the round of 32 match on day two of the Barcelona Open Banc Sabadell at Real Club De Tenis Barcelona on April 24, 2019 in Barcelona, Spain. (Photo by David Ramos/Getty Images)

Barcelona Open: Rafael Nadal SURVIVES epic battle during opener

MONTE-CARLO, MONACO - APRIL 20: Rafael Nadal of Spain shows his dejection during his straight sets defeat by Fabio Fognini of Italy in their semifinal match during day seven of the Rolex Monte-Carlo Masters at Monte-Carlo Country Club on April 20, 2019 in Monte-Carlo, Monaco. (Photo by Clive Brunskill/Getty Images)

Rafael Nadal: how the King of Clay fell at the Monte Carlo Masters

MONTE-CARLO, MONACO - APRIL 19: Rafael Nadal of Spain celebrates to the crowd after his straight sets victory against Guido Pella of Argentinain their quarter final match during day six of the Rolex Monte-Carlo Masters at Monte-Carlo Country Club on April 19, 2019 in Monte-Carlo, Monaco. (Photo by Clive Brunskill/Getty Images)

Monte Carlo Masters: Five MUST SEE Photos from the Quarterfinals

MONTE-CARLO, MONACO - APRIL 16: Novak Djokovic of Serbia smashes his racket in anger against Philipp Kohlschreiber of Germany in their second round match during day 3 of the Rolex Monte-Carlo Masters at Monte-Carlo Country Club on April 16, 2019 in Monte-Carlo, Monaco. (Photo by Clive Brunskill/Getty Images)

Novak Djokovic Smashes Racquet, Survives Monte Carlo Opener

MONTE-CARLO, MONACO - APRIL 16: Marin Cilic of Croatia serves against Guido Pella of Argentina in their second round match during day 3 of the Rolex Monte-Carlo Masters at Monte-Carlo Country Club on April 16, 2019 in Monte-Carlo, Monaco. (Photo by Clive Brunskill/Getty Images)

Monte Carlo Masters: Upsets, Updates, and Previews of the Early Men’s Action

MONTE-CARLO, MONACO - APRIL 15: Kyle Edmund of Great Britain walks off court after his three set defeat against Diego Schwartzman of Argentina in their first round match during day two of the Rolex Monte-Carlo Masters at Monte-Carlo Country Club on April 15, 2019 in Monte-Carlo, Monaco. (Photo by Clive Brunskill/Getty Images)

BREAKING: Early Upsets at the 2019 Monte Carlo Masters

MIAMI GARDENS, FLORIDA - MARCH 23: Alexander Zverev of Germany argues a call with ATP supervisor Miro Bratoev while playing David Ferrer of Spain during the Miami Open Presented by Itau at Hard Rock Stadium March 23, 2019 in Miami Gardens, Florida.(Photo by Matthew Stockman/Getty Images)

Monte Carlo Masters is major test for Alexander Zverev

MONTE-CARLO, MONACO - APRIL 22: Rafael Nadal of Spain in action against Kei Nishikori of Japan 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)

WATCH Rafael Nadal practice at the Monte Carlo Masters

INDIAN WELLS, CALIFORNIA - MARCH 12: Stan Wawrinka of Switzerland shows his dejection against Roger Federer of Switzerland during their men's singles third round match on day nine of the BNP Paribas Open at the Indian Wells Tennis Garden on March 12, 2019 in Indian Wells, California. (Photo by Clive Brunskill/Getty Images)

Stan Wawrinka vs Lucas Pouille: Monte Carlo Predictions

INDIAN WELLS, CALIFORNIA - MARCH 09: Sam Querrey of the United States plays a backhand against Milos Raonic of Canada during their men's singles second round match on Day 6 of the BNP Paribas Open at the Indian Wells Tennis Garden on March 09, 2019 in Indian Wells, California. (Photo by Yong Teck Lim/Getty Images)

Sam Querrey seeks a spot in the U.S. Men’s Clay Court Championships final

INDIAN WELLS, CALIFORNIA - MARCH 16: Rafael Nadal of Spain speaks to members of the media after withdrawing from his men's singles semifinal match against Roger Federer of Switzerland due to a right knee injury on Day 13 of the BNP Paribas Open at the Indian Wells Tennis Garden on March 16, 2019 in Indian Wells, California. (Photo by Yong Teck Lim/Getty Images)

Can Rafael Nadal defend at the Monte Carlo Masters?

MIAMI GARDENS, FLORIDA - MARCH 22: Kei Nishikori of Japan in action against Dusan Lajovic of Serbia during day five of the Miami Open Tennis on March 22, 2019 in Miami Gardens, Florida. (Photo by Julian Finney/Getty Images)

ATP rankings update at the start of the 2019 clay court season

INDIAN WELLS, CALIFORNIA - MARCH 15: Rafael Nadal of Spain plays a forehand against Karen Khachanov of Russia during their men's singles quarter final match at the BNP Paribas Open at the Indian Wells Tennis Garden on March 15, 2019 in Indian Wells, California. (Photo by Sean M. Haffey/Getty Images)

Expect Rafael Nadal to be back in top form for clay court season

MIAMI GARDENS, FLORIDA - MARCH 29: John Isner celebrates match point against Felix Auger Aliassime of Canada during day 12 of the Miami Open presented by Itau at Hard Rock Stadium on March 29, 2019 in Miami Gardens, Florida. (Photo by Al Bello/Getty Images)

Priceless John Isner reaction following Miami Open loss

MIAMI GARDENS, FLORIDA - MARCH 23: Roger Federer of Switzerland in serves to Radu Albot of Moldova during the Miami Open Tennis on March 23, 2019 in Miami Gardens, Florida. (Photo by Julian Finney/Getty Images)

5 things we learned from the Sunshine Double

MIAMI GARDENS, FLORIDA - MARCH 26: Novak Djokovic of Serbia looks on against Roberto Bautista Agut of Spain during the Miami Open tennis on March 26, 2019 in Miami Gardens, Florida. (Photo by Julian Finney/Getty Images)

Roberto Bautista Agut SHOCKS Novak Djokovic again

MIAMI GARDENS, FLORIDA - MARCH 24: John Isner of the United States returns a shot to Albert Ramos Vinolas of Spain during Day 7 of the Miami Open Presented by Itau at Hard Rock Stadium on March 24, 2019 in Miami Gardens, Florida. (Photo by Michael Reaves/Getty Images)

Can defending champion John Isner repeat at the Miami Open?

MELBOURNE, AUSTRALIA - JANUARY 15: David Goffin of Belgium plays a forehand in his first round match against Christian Garin of Chile during day two of the 2019 Australian Open at Melbourne Park on January 15, 2019 in Melbourne, Australia. (Photo by Mike Owen/Getty Images)

Miami Open provides David Goffin a chance at redemption

MIAMI GARDENS, FLORIDA - MARCH 25: Kevin Anderson of South Africa returns a shot to Joao Sousa of Portugal during the Miami Open Presented by Itau at Hard Rock Stadium March 25, 2019 in Miami Gardens, Florida.(Photo by Matthew Stockman/Getty Images)

Kevin Anderson, Roger Federer continue advancing at Miami Open

MIAMI GARDENS, FLORIDA - MARCH 24: John Isner of the United States serves to Albert Ramos Vinolas of Spain during Day 7 of the Miami Open Presented by Itau at Hard Rock Stadium on March 24, 2019 in Miami Gardens, Florida. (Photo by Michael Reaves/Getty Images)

Miami Open Predictions: John Isner vs Kyle Edmund