Opinion

LONDON, ENGLAND - NOVEMBER 12: Alexander Zverev of Germany celebrates during his singles round robin match against Marin Cilic of Croatia during Day Two of the Nitto ATP World Tour Finals at The O2 Arena on November 12, 2018 in London, England. (Photo by Julian Finney/Getty Images)

ATP Finals: Alexander Zverev Completes Stunning Victory Over Marin Cilic

Next Gen ATP Finals: Reviewing the 2018 Action

Rafael Nadal Misses ATP Finals, Wins Sportsmanship Award

Dominic Thiem Poses Unexpected Threat At 2018 ATP Finals

MILAN, ITALY - NOVEMBER 11: Hyeon Chung of South Korea celebrates with the trophy after victory against Andrey Rublev of Russia in the mens final on day 5 of the Next Gen ATP Finals on November 11, 2017 in Milan, Italy. (Photo by Emilio Andreoli/Getty Images)

ATP Next Gen Finals: 2018 Player Preview

MELBOURNE, AUSTRALIA - JANUARY 19: Rafael Nadal of Spain ties his bandana in his third round match against Damir Dzumhur of Bosnia and Herzogovina on day five of the 2018 Australian Open at Melbourne Park on January 19, 2018 in Melbourne, Australia. (Photo by Scott Barbour/Getty Images)

Rafael Nadal in 2018: Fall From Grace Or Career Year?

PARIS, FRANCE - NOVEMBER 03: Roger Federer of Switzerland plays a forehand during his Semi Final match against Novak Djokovic of Serbia on Day 6 of the Rolex Paris Masters on November 3, 2018 in Paris, France. (Photo by Justin Setterfield/Getty Images)

Djokovic, Federer Complete Most Spectacular Match Of 2018

PARIS, FRANCE - NOVEMBER 01: Novak Djokovic of Serbia celebrates after winning in his Round of 16 match against Damir Dzumhur of Bosnia who retired injured during Day 4 of the Rolex Paris Masters on November 1, 2018 in Paris, France. (Photo by Justin Setterfield/Getty Images)

ATP Finals London: Novak Djokovic Owns The O2 Arena

NEW YORK, NY - SEPTEMBER 03: Novak Djokovic of Serbia returns the ball during the men's singles fourth round match against Jaoa Sousa of Portugal on Day Eight of the 2018 US Open at the USTA Billie Jean King National Tennis Center on September 3, 2018 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)

Paris Masters Odds Lean Toward Serbian Star Novak Djokovic

SHANGHAI, CHINA - OCTOBER 11: Roger Federer of Switzerland looks on against Roberto Bautista Agut of Spain during they third round of the 2018 Rolex Shanghai Masters on Day 5 at Qi Zhong Tennis Centre on October 11, 2018 in Shanghai, China. (Photo by Lintao Zhang/Getty Images)

Can Roger Federer Take Advantage As Rafael Nadal Fades?

PARIS, FRANCE - NOVEMBER 01: Dominic Thiem of Austria celerbrates winning the second set in his Round of 16 match against Borna Coric of Croatia during Day Four of the Rolex Paris Masters on November 1, 2018 in Paris, France. (Photo by Justin Setterfield/Getty Images)

ATP Finals Chances Improving For Dominic Thiem

BEIJING, CHINA - OCTOBER 06: Kyle Edmund of Great Britain hits a return against Nikoloz Basilashvili of Georgia during his Men's Singles Semifinals match in the 2018 China Open at the China National Tennis Center on October 6, 2018 in Beijing, China. (Photo by Di Yin/Getty Images)

David Foster Wallace, Tennis, and the Next Great Generation of Players

PARIS, FRANCE - OCTOBER 27: Rafael Nadal of Spain serves during practice ahead of the Rolex Paris Masters at AccorHotels Arena on October 27, 2018 in Paris, France. (Photo by Justin Setterfield/Getty Images)

Trouble Ahead for Rafael Nadal at 2018 ATP Finals

SHANGHAI, CHINA - OCTOBER 11: Kevin Anderson of Republic of South Africa returns a shot to Stefanos Tsitsipas of Greece during the Third Round Men's Singles match in the 2018 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 11, 2018 in Shanghai, China. (Photo by Kevin Lee/Getty Images)

Kevin Anderson Among Legendary Veterans Reaching ATP Finals

SINGAPORE - OCTOBER 26: Sloane Stephens of the United States celebrates her win in her Women's singles match against Angelique Kerber of Germany during day 6 of the BNP Paribas WTA Finals Singapore presented by SC Global at Singapore Sports Hub on October 26, 2018 in Singapore. (Photo by Yong Teck Lim/Getty Images for the WTA)

WTA Finals Will Crown New Champion In Women’s Singles

NEW YORK, NY - AUGUST 30: Eugenie Bouchard of Canada serves during her women's singles second round match against Marketa Vondrousova of Czech Republic on Day Four of the 2018 US Open at the USTA Billie Jean King National Tennis Center on August 30, 2018 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Julian Finney/Getty Images)

Eugenie Bouchard climbs singles rankings, cracks WTA Top 100

SHANGHAI, CHINA - OCTOBER 14: Novak Djokovic of Serbia returns a shot to Borna Coric of Croatia during the final of men's singles match of the 2018 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 14, 2018 in Shanghai, China. (Photo by Kevin Lee/Getty Images)

Novak Djokovic workout proves expert balance on Instagram

SINGAPORE - OCTOBER 25: Caroline Wozniacki of Denmark reacts to a point in her singles match against Elina Svitolina of the Ukraine during day 5 of the BNP Paribas WTA Finals Singapore presented by SC Global at Singapore Sports Hub on October 25, 2018 in Singapore. (Photo by Clive Brunskill/Getty Images)

Caroline Wozniacki reveals startling arthritis diagnosis

SINGAPORE - OCTOBER 24: Angelique Kerber of Germany plays a forehand in her women's singles match against Naomi Osaka of Japan during day 4 of the BNP Paribas WTA Finals Singapore presented by SC Global at Singapore Sports Hub on October 24, 2018 in Singapore. at Singapore Sports Hub on October 24, 2018 in Singapore. (Photo by Clive Brunskill/Getty Images)

Angelique Kerber Rebounds From Opening Match WTA Finals Loss

MELBOURNE, AUSTRALIA - JANUARY 16: Jurgen Melzer of Austria celebrates a point in his first round match against Roger Federer of Switzerland on day one of the 2017 Australian Open at Melbourne Park on January 16, 2017 in Melbourne, Australia. (Photo by Clive Brunskill/Getty Images)

Vienna Tennis Veteran Jurgen Melzer Set To Retire

SHANGHAI, CHINA - OCTOBER 10: Kyle Edmund of Great Britain returns a shot to Andreas Seppi of Italy during the Second Round match of Men's Single match in 2018 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 10, 2018 in Shanghai, China. (Photo by Kevin Lee/Getty Images)

Kyle Edmund On The Board, Impressive First ATP Title

LONDON, ENGLAND - JUNE 28: A Wimbledon official points out the plague that is on the outside of Court 18 to commemorate the longest match which was between John Isner and Nicolas Mahut in 2010 on day six of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club at Wimbledon on June 28, 2014 in London, England. (Photo by Dan Kitwood/Getty Images)

Longest Tennis Match Ever: Isner-Mahut at Wimbledon 2010

SHANGHAI, CHINA - OCTOBER 08: Gael Monfils of France plays a shot against Stefanos Tsitsipas of Greece during First Round in 2018 Rolex Shanghai Masters on Day 2 at Qi Zhong Tennis Centre at Qi Zhong Tennis Centre on October 8, 2018 in Shanghai, China. (Photo by Lintao Zhang/Getty Images)

European Open Sees Kyle Edmund, Gael Monfils Reach Finals

SINGAPORE - OCTOBER 19: The 2018 BNP Paribas WTA Finals Singapore presented by SC Global returns to Singapore for the fifth consecutive year with the top women competing for $7 million in prize money from October 21 to October 28. This year's singles field pose at Bay East Garden. Left to Right: Kiki Bertens of the Netherlands, Karolina Pliskova of the Czech Republic, lina Svitolina of the Ukraine, Petra Kvitova of the Czech Republic, Caroline Wozniacki of Denmark, Angelique Kerber of Germany, Sloane Stephens of the United States and Naomi Osaka of Japan, on October 19, 2018 in Singapore. (Photo by Clive Brunskill/Getty Images)

Caroline Wozniacki Sets Out To Defend WTA Finals Title

INDIAN WELLS, CA - MARCH 09: Eugenie Bouchard of Canada fades back for a shot while playing Annika Beck of Germany during the BNP Paribas Open at the Indian Wells Tennis Garden on March 9, 2017 in Indian Wells, California. (Photo by Matthew Stockman/Getty Images)

Is Eugenie Bouchard Back To Her Old Self On The WTA Tour?

SHANGHAI, CHINA - OCTOBER 10: Kyle Edmund of Great Britain returns a shot to Andreas Seppi of Italy during the Second Round match of Men's Single match in 2018 Rolex Shanghai Masters at Qi Zhong Tennis Centre on October 10, 2018 in Shanghai, China. (Photo by Kevin Lee/Getty Images)

Kyle Edmund Is Best Young Player Without A Title To His Name

BEIJING, CHINA - OCTOBER 02: Gael Monfils of France acts against Fernando Verdasco of Spain during his Men's Singles first Round match of the 2018 China Open at the China National Tennis Centre on October 2, 2018 in Beijing, China. (Photo by Di Yin/Getty Images)

Gael Monfils Seeks Elusive Second Title In One Year

CHICAGO, IL - SEPTEMBER 23: Team World John Isner of the United States returns a shot against Team Europe Roger Federer of Switzerland during their Men's Singles match on day three of the 2018 Laver Cup at the United Center on September 23, 2018 in Chicago, Illinois. (Photo by Stacy Revere/Getty Images for The Laver Cup)

Top 10 John Isner: Is Another ATP Title Around The Corner?