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(2) Federer vs. (6) Thiem (Round Robin)

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Anderson thrashes Nishikori at ATP Finals

Kevin Anderson is on the verge of qualifying for the semifinals of the ATP World Tour Finals after thrashing Kei Nishikori in London on Tuesday.

Dominic Thiem has had a breakout year. Is he ready for Roger Federer?

Ahead of his Tuesday match against Federer, Thiem said he considers himself "mentally strong." But will it be enough to fend off the Grand Slam champ at the ATP World Tour Finals?

Top Headlines

Watch: Best of World Tour Finals

Anderson thrashes Nishikori 6-0 6-1

Kevin Anderson thrashed Kei Nishikori 6-0, 6-1 on Tuesday to move to the brink of the last four on his ATP Finals debut.

0:59

Federer praises 'great fighter' Nishikori

Roger Federer lauded Kei Nishikori, after the Japanese player beat the Swiss at the ATP Finals in London.

0:35

Federer: I'm focused more on winning ATP Finals than 100th title

Roger Federer hailed Novak Djokovic's determination to rise back to the top after his injury and insists he wants to win the ATP Finals because of the tournament's prestige.

3:29

Monday in London

Clinical Djokovic tames Isner in ATP Finals

Novak Djokovic made a superb opening campaign at the ATP Finals, defeating American John Isner in straight sets.

Djokovic cruises past Isner in London

World No. 1 Novak Djokovic saw out a comfortable 6-4, 6-3 win over John Isner at the ATP Finals in London.

1:04

Zverev beats Cilic in straight sets

Germany's Alexander Zverev won two tie breaks to defeat Croatia's Marin Cilic 7-6(5), 7-6(1) in their opening match at the ATP Finals.

1:04

Djokovic: I played in Juve colours, Ronaldo must be happy

Novak Djokovic admitted his admiration for Cristiano Ronaldo after the forward was there to see him cruise past John Isner.

0:47

Zverev: ATP Finals court is too fast for me, but slow for Federer

Alexander Zverev has disagreed with Roger Federer who said that the court at the London's O2 Arena was slow when he believes it to be 'weird and fast'.

0:44

Stefanos Tsitsipas

Serena Williams' coach expects big things from Stefanos Tsitsipas, and so should you

He's become something of a superhero in Greece, and it's only a matter of time before the entire world knows Stefanos Tsitsipas.

Tsitsipas continues Next Gen run with Tiafoe win

Stefanos Tsitsipas is in pole position to advance to the semifinals of the ATP Next Gen Finals after securing a straight-sets victory over Frances Tiafoe.

Paris Masters

Welcome to the 'Next Big Thing' club, Karen Khachanov

He's big strong and talented. Karen Khachanov beat Novak Djokovic to win the Paris Masters, a win that immediately thrust the Russian into elite, but often disappointing, company.

Khachanov stuns Djokovic to win Paris Masters

Karen Khachanov upset a tired-looking Novak Djokovic 7-5, 6-4 to win the Paris Masters title and deprive Djokovic the chance on Sunday of matching Rafael Nadal's record of 33 Masters titles.

WTA Finals

Examining the WTA through a transition lens

It was the first year since 2011 that Serena Williams didn't win a major, as players like Elina Svitolina yearn for consistency.

Svitolina beats Stephens to win WTA Finals

Elina Svitolina became the first Ukrainian player to win the season-ending WTA Finals trophy, beating Sloane Stephens to secure the biggest title of her career on Sunday.

Serena's season

Why 2018 could be Serena Williams' most impactful year yet

Serena Williams showed us much more than a tennis cape in 2018. She showed us her human side.

Final word: Our take on Serena Williams' 2018 season

There were ups and downs along the way, but based on her 2018 season, Serena Williams proved she still has plenty of top-level tennis left.

Serena's coach supports in-match coaching

Serena Williams' coach says in-match coaching should be allowed in tennis to help the sport's popularity.

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