Jannik Sinner embraces the pressure of major finals and Alexander Zverev went down under the strain at Melbourne on Sunday.

PAUL CROCK/AFP via Getty Images MELBOURNE, Australia — Learner Tien, a 19-year-old qualifier from California, became the youngest American man to reach the Australian Open’s third round since Pete ...

Giant-killing Alex Michelsen has pulled off a Pete Sampras-like feat to power into the Australian Open fourth round in ...

Learner Tien poses for photos with fans at 3am in the ... American man to reach the Australian Open’s third round since Pete Sampras in 1990. The 19-year-old was told about the record during ...

And he’s the youngest American man in the third round in Melbourne since Pete Sampras in 1990 ... (Photo by Andy Cheung/Getty Images) Playing in just his fourth Grand Slam main draw, Tien ...

Former tennis star Anna Kournikova made a rare public appearance over the weekend. Kournikova, 43, was photographed being ...

Follow reaction as Sinner retained the championship with a brilliant showing against three-time major final loser Zverev on ...

Andre Agassi gets a kiss from Brooke Shields after winning over competitor Pete Sampras in the finals of the Canadian Open tennis tournament in 1995. AFP via Getty Images Andre Agassi comes to the ...

American qualifier Learner Tien shocked the tennis world on Thursday when he upset last year's Australian Open runner-up Daniil Medvedev in a nearly five-hour, five-set match in the second round.

Andy Cheung/Getty Images American qualifier Learner Tien ... player to reach the third round of the Australian Open since Pete Sampras in 1990. He will face Frenchman Corentin Moutet in the ...