The World No. 1, despite feeling unwell in sweltering conditions, kept up his title defense with a four-set triumph.

First came the medical timeouts, one each for Jannik Sinner and Holger Rune with the temperature above 90 degrees Fahrenheit ...

Defending champion Jannik Sinner moved into the Australian Open quarterfinals at Melbourne Park on Monday by eliminating the ...

Plus, the fans Tennis Australia doesn’t want at matches and a tennis-going theatre hunk reveals details of his latest project ...

The screw holding the net in place at the Australian Open’s main stadium has been jarred loose during defending champion ...

World No. 1 Jannik Sinner braved a scary medical episode Monday in his 6-3, 3-6, 6-3, 6-2 win over Holger Rune in the fourth ...

Jannik Sinner comes through a tough physical battle against Holger Rune to reach the Australian Open quarter-finals.

The defending champion moved into the quarterfinals at Melbourne Park on Monday by eliminating the 13th-seeded Rune 6-3, 3-6, ...

MELBOURNE—Novak Djokovic was at the center of another Australian Open row on Monday while defending champion Jannik Sinner ...

Grand Slam champ looks to move on from controversy after Australian reporter clarifies comments. Favorites Jannik Sinner, Iga ...

Jannik Sinner is through to his third Australian Open quarter-final within four years. The Italian faced Holger Rune in the ...