NEW YORK -- On the court, Serbian tennis star Ana Ivanovic has plenty of accomplishments. She has a French Open title, three Grand Slam Finals appearances and 11 WTA titles. Although she has struggled in recent years, the former world No. 1 is seeded 13th at this year's U.S. Open.

Off the court, the bombshell has also made a name for herself. In 2010, she appeared in the Sports Illustrated Swimsuit Issue. She has also made fashion appearances in FHM, Vanity Fair, Cosmopolitan, Vanidades, Grazia and other publications.

In her romantic life, Ivanovic twice dated the 2013 Masters champion, Adam Scott.

Last Tuesday, the 25-year-old took her next step in pop culture. She created a Twitter account.

"I had people trying to persuade me to start for months and years, actually," she said. "I have been very resistant, but I did join and I'm enjoying it."

Ivanovic had clear trouble at first, as her initial tweet featured only a lowercase a.

The botched tweet was taken down Thursday night and replaced with a selfie. Ivanovic appeared to be in full makeup with her hair done and New York City in the background.

A variety of fellow and former players tweeted at Ivanovic, including Rafael Nadal, Laura Robson, Marion Bartoli and Kim Clijsters.

"It's a lot of fun and it's interaction with people," she said. "It's just a different world for me. I'm having fun. I didn't regret my decision."

Ivanovic's decision leaves 2011 U.S. Open champion Samantha Stosur as the only player in the top 20 to not have a Twitter account. The 29-year-old Aussie was already 22 upon Twitter's inception.

Two of the most popular tweeters in sports are men's No. 1 and No. 2 overall players, Novak Djokovic and Rafael Nadal. Djokovic, Ivanovic's fellow Serb could be of help to the novice tweeter.

"I actually haven't had a chance to speak to him much, but I definitely will," she said.

As for her social media relation with both Djokovic and Nadal, Ivanovic looks forward to communicating.

"Hopefully we can have some interactions, and, you know, you guys can see a little bit lighter side of things."

Nadal already reached out to Ivanovic, although he does not appear to be talking lightly. He gave her a workmanlike welcome last week.

Djokovic and Nadal are likely to stick around the players' lounge for much of the fortnight. Ivanovic, who reached the U.S. Open quarterfinals in 2012, will need to keep on winning to talk Twitter with them.

On Tuesday, she started things off with a 6-2, 6-0 victory over Anna Tatishvili of Georgia. She will take the court for her second-round match on Thursday against Alexandra Dulgheru of Romania.

Stosur is also in Ivanovic's quarter of the bracket, which means one important thing: A potential quarterfinals matchup between the new tweeter and the non-tweeter looms.