Jelena Ostapenko said that ever since winning the French Open she has become a marked woman with everyone trying to beat her.

That included corset-wearing Italian veteran Francesca Schiavone, who failed in her task in the Australian Open first round on Monday, losing 6-1, 6-4.

World No 7 Ostapenko (above) raced through the first set on Rod Laver Arena against the 2010 Roland Garros winner.

"I mean, of course it's tough, especially after winning at the age of 20. Everybody wants to beat you," she said of entering a major tournament as a former Grand Slam champion.

"You have to prepare very well for every match. But on the other side, I have nothing to lose. I've already won the Grand Slam. I just enjoy every match and show my best."

Following her French Open success, Ostapenko finished the year in the top 10 for the first time in her career and has taken the leap to being a high-profile player in her stride.

"I think after the French I did well at Wimbledon. That gave me even more confidence," she said.

"I've had a good preseason, and now I'm ready. I'm looking forward to my second match here."