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Here's everything you need to know about the massive Davis Cup overhaul

The ITF approved a major overhaul to Davis Cup on Thursday. Here are the advantages and disadvantages of the new format.

EPA/LUCA ZENNARO

Davis Cup changes to 18-team final tournament

The Davis Cup will have 12 nations advancing from February qualifiers to a year-end tourney that also features the previous year's semifinalists and two wild-card teams.

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Western & Southern Open

After another loss, Serena Williams heads to US Open with no momentum

Serena Williams lost a tough match at the Western & Southern Open, a setback that only adds more doubt to her form heading into the US Open.

Kvitova shocks Serena Williams in Cincinnati

Petra Kvitova overcame Serena Williams in an epic three-set encounter in the second round at the Cincinnati Open winning 6-3, 2-6, 6-3.

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Kvitova 'confident' about Cinci chances after beating Serena

Petra Kvitova revealed her confidence has increased after knocking out one of the world's best in Serena Williams at the Cincinnati Open.

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Cincinnati results

Sloane Stephens eases into Cinci third round

Sloane Stephens beat Tatjana Maria 6-3, 6-2 to reach the third round of the Western and Southern Open in Cincinnati.

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Dimitrov, Kyrgios advance in Cincinnati

Grigor Dimitrov and Nick Kyrgios both advanced into the third round of the Western and Southern Open.

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Djokovic reaches Cincinnati Masters third round

Novak Djokovic needed more than two hours to beat Adrian Mannarino 4-6, 6-2, 6-1 in the second round of the Cincinnati Masters.

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Wozniacki retires in Cincinnati second round

Kiki Bertens advanced from the second round of the Western and Southern Open after her opponent Caroline Wozniacki was forced to retire through injury.

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Rogers Cup

If her opponent wasn't enough, Simona Halep had to overcome bout of negativity

World No. 1 Simona Halep had to fight off her own negative emotions as much as Sloane Stephens in the final of the Rogers Cup.

Nadal spoils Tsitsipas' birthday with Rogers win

Rafael Nadal won his 80th ATP World Tour title Sunday, beating unseeded Greek upstart Stefanos Tsitsipas 6-2, 7-6 (4) for his fourth Rogers Cup crown.

Nadal hails 'ugly but important' Rogers Cup win

Rafael Nadal believes his win in the Rogers Cup was important as it showed him he could win ugly when he wasn't playing his best tennis.

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Numbers behind Kerber

How data-driven coaching helped Angelique Kerber to latest crown

Hard work and dedication? Sure, there was some of that, but Angelique Kerber's run to the Wimbledon title was largely a result of a deep dive into the numbers behind her game.

Atlanta Open

Isner wins Atlanta Open for 5th time in 6 years

John Isner won the BB&T Atlanta Open for the fifth time in six years Sunday, beating fellow American Ryan Harrison in the final for the second straight year.

Onward and upward: John Isner won't let his Wimbledon loss foil his summer

As far as John Isner is concerned, his Wimbledon semifinal loss never happened. It's time to move on.

Hall of Fame

Be like Mike: Why rising stars should follow in the footsteps of Hall of Famer Stich

Overshadowed for most of his career, 2018 Hall of Fame inductee Michael Stich quietly put together a blueprint for success that could help today's rising tennis stars reach a new level.

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