MELBOURNE -- Catch up on all of the action from the Australian Open on Tuesday that you may have missed while you were sleeping:
Serena Williams leads 12 total American women into the second round
No muss, no fuss for No. 1 Serena, as she dispatched of Belgium's Alison Van Uytvanck 6-0, 6-4 to open her tournament. It was a highly-successful first round for the American women, with 12 players advancing to the second round, eight of which scored big wins on Tuesday to secure their advanced position. Venus Williams, Varvara Lepchenko, Madison Keys, CoCo Vandeweghe, Lauren Davis and Nicole Gibbs didn't lose a set on Tuesday, while two young Americans pulled off strong upsets.
Madison Brengle, fresh off her run to the final of the Hobart International last week, knocked off No. 13 Andrea Petkovic 5-7, 7-6, 6-4. Irina Falconi, who earned her wildcard into the tournament after winning the USTA playoff, upended No. 48 Kaia Kanepi 2-6, 6-4, 7-5.
On the men's side, John Isner booked his spot into the second round with a 7-6, 6-4, 6-4 win over Jimmy Wang. Steve Johnson and Donald Young also won. Denis Kudla fell just short of pulling off the biggest upset of the day against No. 12 Feliciano Lopez, losing 10-8 in the fifth.
Victoria Azarenka and Caroline Wozniacki set for a second round showdown
In their third match in three years at Melbourne Park, Azarenka got the best of Sloane Stephens again and won 6-3, 6-2. Wozniacki had to work hard to get past Taylor Townsend but pulled of a 7-6, 6-2 win. Their victories set up a must-see second round clash between the two friends on Thursday, in a match that would be worthy of a Slam final.
Novak Djokovic, Stan Wawrinka and Kei Nishikori cruise
The top three seeds in the top half of the draw didn't lose a set. Wawrinka took less than 90 minutes to dismantle Marsel Ilhan 6-1, 6-4, 6-2, and Djokovic followed him with a 6-3, 6-2, 6-4 win over Aljaz Bedene in 1 hour and 49 minutes. Nishikori defeated Nicolas Almagro 6-5, 7-6, 6-2.
Photo of the day
Photo of the day: Engagement edition
What's with all the big news being announced in Melbourne? Congratulations to Tomas Berdych and Ester Satarova on their engagement.
Video of the day
Welcome to the big time, Thanasi Kokkinakis:
Vine of the day
Tweets of the day
This post will be updated.