Emerging stars Carlos Alcaraz and Jannik Sinner are featured in the book, ‘Changeover: A Young Rivalry and a New Era of Men’s Tennis.’

For two decades, men’s tennis was defined by the Big Three of Novak Djokovic, Roger Federer and Rafael Nadal, who won a combined 66 out of 81 Grand Slam events between 2003 and 2023. Men’s tennis has entered a new era: the Big Two.

Jannik Sinner risks losing a second title if he succumbs to Carlos Alcaraz at the US Open. Sinner and Alcaraz are the No.1 and No.2 seeds respectively at this year's US Open. The top two tennis players in the world were involved in the final of the Cincinnati Open on Monday ahead of potentially meeting each other in Flushing Meadows.

Sinner turned 24 years old on Saturday, while Alcaraz is 22. All of this is to say it’s not a surprise that top-ranked Sinner and Alcaraz are meeting in the finals of the 2025 Cincinnati Masters, one of the biggest non-Grand Slams on the tennis calendar and the warmup event for the U.S. Open.

Former US Open champion Mats Wilander predicts this year's winner at the final Major event of the season. The Swede sees Jannik Sinner as the main contender, placing the defending champion above Carlos Alcaraz.

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The list of highest-paid tennis players in 2025 has officially been unveiled with multiple recognizable names at the top.

On Monday, Carlos Alcaraz claimed his first Cincinnati Masters title in unusual circumstances. World no. 1 Jannik Sinner was forced to retire due to illness while trailing 5-0, handing the trophy to his greatest rival.

The world’s top-ranked tennis player talks about the U.S. Open, carbo-loading and his rival Carlos Alcaraz.

The two young champions, who met as teen-agers, are expected to face off at this year’s U.S. Open. A new book by Giri Nathan tracks their parallel ascent.

Nathan, a co-founder of the sports website Defector Media, has published “ Changeover: A Young Rivalry and a New Era of Men’s Tennis ” with Gallery Books. He spent the 2024 season squarely focused on Sinner and Alcaraz, in which they split the four majors and accelerated their ascension into a tennis stratosphere of their own creation.