A brief look at the results, style and stats that caught the eye on Day 2 of the tournament at Melbourne Park. (All AFP and AP Images)
UPSET OF THE DAY: Home hope Samantha Stosur became the first big name to fall, allowing Romania's Sorana Cirstea to record a famous 7-6, 6-3 win.
QUOTE OF THE DAY: "Probably the whole country hates me now" - Sorana Cirstea after beating Australia's Sam Stosur, the U.S. Open champion.
MATCH OF THE DAY: Coming back from two sets down Viktor Troicki defeated Juan Carlos Ferrero of Spain 4-6, 6-7 (3), 6-2, 7-6 (3), 6-2.
STAT OF THE DAY: 17 - number of consecutive games won by Novak Djokovic in his 6-2, 6-0, 6-0 win over Paolo Lorenzi.
STYLE STATEMENT OF THE DAY: Frenchman Jo-Wilfried Tsonga looked like a retro star in his orange T-shirt combined with the headband.
Tsonga defeated Denis Istomin of Uzbekistan 6-4, 3-6, 6-2, 7-5 in his opener.
PAST CHAMPION IN PLAY: Maria Sharapova pummelled Argentina's Gisela Dulko 6-0, 6-1 in less than an hour, smashing 14 winners past Dulko and forcing the Argentine into 22 errors over the two sets.
WAG OF THE DAY: Brooklyn Decker was in the stands to watch husband Andy Roddick cruise to an easy win.
Andy Roddick easily defeated Robin Haase of the Netherlands 6-3, 6-4, 6-1 to move into the second round.
In other big results, Serena Williams had little difficulty in dispatching off Tamira Paszek 6-3, 6-2.
After surrendering her opening service game with a double-fault, Wimbledon champion Petra Kvitova won 12 consecutive games in a 6-2, 6-0 win over Russia's Vera Dushevina.
Lleyton Hewitt, gave the night session crowd at Rod Laver Arena something to cheer for when the Australian veteran beat Germany's Cedrik-Marcel Stebe 7-5, 6-4, 3-6, 7-5, coming from 5-1 down in the fourth set.
No. 5-seeded David Ferrer advanced in straight sets, 6-1, 6-4, 6-2, over Rui Machado of Portugal. No. 17 Richard Gasquet, No. 23 Milos Raonic of Canada, No. 24 Kei Nishikori of Japan and No. 32 Alex Bogomolov Jr. of Russia also advanced.
No. 18 Svetlana Kuznetsova, No. 21 Ana Ivanovic, No. 9 Marion Bartoli and No. 7 Vera Zvonareva also kept their campaign alive.