Learner Tien pulled off a massive upset against Daniil Medvedev at the Australian Open. So, who is Tien, the 19-year-old out of California?

The Australian Open first round continues with fifth seed Daniil Medvedev, home favourite Alex de Minaur and Italy's Jasmine Paolini among those in action, while Taylor Fritz battles Jenson Brooksby in one of three all-American clashes on Tuesday.

Daniil Medvedev earns code violation for racket abuse before rallying past wild card entrant; Taylor Fritz carries U.S. banner forward.

We wrap up the first round of the Australian Open on Day 3, with 20 men’s matches on the schedule. As always, our writers here at LastWordOnTennis share their thoughts on every single match with you.

MELBOURNE – A volatile Daniil Medvedev mangled his racket in an epic temper tantrum on Jan 14, before battling through a five-set roller-coaster to stay alive at 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.

Last year's runner-up Daniil Medvedev smashed his racquet and avoided a huge shock at the Australian Open on Tuesday before joining a rampant Taylor Fritz and veteran Gael Monfils in

Teenage qualifier Learner Tien stunned last year's Australian Open runner-up Daniil Medvedev after Jannik Sinner roared back to take his place in the third round.

John Cain Arena never really had a chance to erupt all day; the loudest applause occurred when a fan successfully guessed the changeover trivia.

In Melbourne, tennis players Daniil Medvedev, Taylor Fritz, and Elena Rybakina advanced to the next rounds with notable performances. Medvedev overcame frustrations, Fritz aims to end an American men's Grand Slam drought,

Three-time Australian Open finalist Daniil Medvedev smashed his racket ... stayed cool throughout his match against compatriot Jenson Brooksby, easing to a 6-2, 6-0, 6-3 win that showed why ...