João Fonseca has definitively introduced himself to the world as the latest teen sensation in men’s tennis by upsetting No. 9 seed Andrey Rublev 7-6 (1), 6-3, 7-6 (5) in the first round of the Australian Open.

Qualifier Joao Fonseca stunned ninth seed Andey Rublev on his grand slam debut at the Australian Open to extend his winning streak to 14 matches. The 18-year-old Brazilian, who is quickly becoming a superstar in his home country,

Joao Fonseca definitively introduced himself to the world as the latest teen sensation in men’s tennis on Tuesday night, upsetting No. 9 seed Andrey Rublev 7-6 (1), 6-3, 7-6 (5) in the first round of the Australian Open.

Alex de Minaur, the world No. 8, and Nick Kyrgios, who is back after a two-year battle with knee and wrist injuries, are the headliners for their country at Melbourne Park. Kyrgios emceed the night session on John Cain Arena Monday, before De Minaur headlines Rod Laver Arena, the pantheon of Australian tennis Tuesday night.

If this was the last Australian Open singles match of Nick Kyrgios' career — and, to be sure, it's hard to know with him, no matter what came out at his news conference — the big-hitting, big-talking tennis player went out rather quietly Monday night.

Nick Kyrgios said his straight sets defeat to Jacob Fearnley in the first round of the Australian Open on Monday may have been his last singles match at the Grand Slam given his growing frustrations with injury.

Winning in the first round at the Australian Open was always going to be more important for 2021 U.S. Open champion Emma Raducanu than how she achieved the result

No. 4 seed Taylor Fritz defeated Jenson Brooksby 6-2, 6-0, 6-3 in an all-American clash Tuesday at the Australian Open to book his spot in the second round.

Fourth-seeded Taylor Fritz, in his first Grand Slam match since losing the U.S. Open final to Italy's Jannik Sinner last fall, cruised to a victory in the first round of the Australian Open.

Daniil Medvedev has used his racket to smash a tiny camera attached to the net at the Australian Open while he was trailing in his first-round match in the main stadium

Facing what could've been a massive upset, top-ranked tennis pro Daniil Medvedev destroyed a camera and his tennis racket during his first-round match at the Australian Open on Tuesday.