Top 5 Photos 2/1: Gauff hangs on; Serena makes debut

There was plenty of tennis to go around Melbourne Park on the first Sunday of the summer Down Under, as WTA and ATP action filled the courts from start to finish. Here are the Top 5 Photos to get you all caught up for Monday: (all by Getty Images)

1

Coco Gauff remained on course for a potential third-round showdown with Naomi Osaka after winning her Gippsland Trophy opener against Jil Teichmann, 6-3, 6-7 (6), 7-6 (5).

2

Australian wild card Jason Kubler secured his second Top 50 victory after ousting No. 9 seed Lorenzo Sonego, 3-6, 6-3, 6-4, at the Murray River Open.

3

What happens when the past two Roland Garros women's champions practice together? Fun, a lot of fun, as seen by Ashleigh Barty's reaction while training with Iga Swiatek.

4

At the Murray River Open, Corentin Moutet rallied past Franeces Tiafoe, 3-6, 6-4, 6-4, to move ahead 2-1 in the pair's head-to-head series.

5

Serena Williams didn't miss a beat after walking on for her first WTA contest of 2021 at the Yarra Valley Classic, ultimately advancing past Daria Gavrilova, 6-1, 6-4, to confirm a 2020 US Open rematch with Tsvetana Pironkova.