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?

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

MELBOURNE, Jan 14 (Reuters) - Three-times Australian Open finalist Daniil Medvedev allowed his frustrations ... Danish 13th seed Holger Rune was pushed all the way to five sets and Emma Navarro also had a tough time in one of three all-American ties ...

On day three in Melbourne, two Americans turned Rod Laver Arena into a nervous wreck, a 17- and 38-year-old stole the show, and Daniil Medvedev ... NCAA champions Emma Navarro and Peyton Stearns ...

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

Russian Andrey Rublev, seeded ninth, was upset by qualifier Joao Fonseca, an 18-year-old from Brazil. He stormed into his Grand Slam main draw debut, stunning Rublev 7-6 (1), 6-3, 7-6 (5) in two hours and 23 minutes.

Iga Swiatek rushed through her first set in 26 minutes and completed her 6-0, 6-2 second-round win over Rebecca Sramkova in an hour at the Australian Open.

Three-time Australian Open finalist Daniil Medvedev smashed his racket ... Holger Rune was pushed all the way to five sets and Emma Navarro also had a tough time in one of three all-American ...

Iga Swiatek demolished Emma Raducanu on Saturday to sweep into the last 16 of the Australian Open, where Jannik Sinner will later step up his title defence and young tyro

Iga Swiatek demolished Emma Raducanu on Saturday to sweep into the last 16 of the Australian Open as 38-year-old Frenchman Gael Monfils stunned fourth seed Taylor Fritz.

The only women's match featuring Grand Slam singles champions in the third round at the Australian Open turned out to be an overpowering win by Iga Swiatek over Emma Raducanu.

The unseeded Gael Monfils, who hit a career-high ranking of six in 2016 but is now 41st, is enjoying a late-career flourish at the Australian Open.