The final match of the day saw American Learner Tien, playing in his first major outside of the U.S. Open, upset No. 5 seed Daniil Medvedev in a five-set classic, 6-3, 7-6, 6-7, 1-6, 7-6, that ended at 2:54 a.m. local time. Medvedev had reached three of the past four Australian Open finals, but could not fend off a ferocious Tien.

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.

We’ll see the end of the second round on Day 5 of the Australian Open, which means 16 exciting men’s matches on the schedule. Who do you think will win on Thursday in Melbourne?

American tennis player Taylor Fritz is donating the prize money he earned for his first-round victory at the Australian Open — about $82,000 — to relief funds to help people affected by the wildfires in the greater Los Angeles area.

American tennis player Taylor Fritz said Thursday he is donating the prize money he earned for his first-round victory at the Australian Open -- about $82,000 -- to relief funds to help people affected by the wildfires in the Los Angeles area.