Author: Sandra Harwitt, Special to USA TODAY

If the 2019 edition of the Australian Open is an indication of what’s ahead this year, there should be a lot of memorable moments in tennis.

Naomi Osaka backs up her US Open title by capturing the Australian Open and the No. 1 ranking with a big win against Petra Kvitova.

Novak Djokovic and Rafael Nadal will meet for a 53rd time in the men’s Australian Open final, where Djokovic holds a 27-25 lead.

Looking for their first Australian Open title, Petra Kvitova and Naomi Osaka meet for the first time with the world No. 1 ranking on the line.

Danielle Collins, a two-time NCAA champion with Virginia, was aiming to become the first collegiate player to reach a major final since 1983.

Rafael Nadal ended Frances Tiafoe’s fabulous run at the Australian Open, beating the American 6-3, 6-4, 6-2to take his place in the semifinals.

Danielle Collins, who played at Virginia, has reached the Australian Open semis after some big upsets.

Serena Williams fights to a 6-1, 4-6, 6-4 fourth-round win against top-ranked Simona Halep at the Australian Open.