The Australian Open is underway and sports fans are eager to see what some of their favorite tennis players are wearing.

According to Maria Sharapova, yellow is the leading color worn by players on the court during the tournament.

Sharapova, 25, announced her Twitter debut on Jan . 14. "Your ultimate sugarmama has arrived #myfirsttweet," she wrote.

The Russian player's second tweet leaked the news of what fans can expect to see on the court from competing players that day.

"Everyone got dressed in the same closet, wearing yellow on court at aus open," Sharapova wrote.

Sharapova confirmed the report when she arrived on court wearing a yellow tank dress designed by her sponsor Nike. The engaged sports star has worn the "Premier Maria Tennis Dress" on court several times since the Australian Open began. Nike described the colors of the dress as "Electric Yellow, Strata Grey and Vivid Sulphur," and said the dress, inspired by "sunlight," was made with "shimmery" fabrics that "catch the light during play." 

Caroline Wozniacki also wore a light yellow tennis dress, but hers was designed by Stella McCartney for Adidas who sponsors her. Her opponent, German Sabine Lisicki, wore a white-and-yellow dress by Nike.

Male tennis players also got in on the action of wearing yellow on the court -France's Gael Monfils wore a bright yellow T-shirt that matched his tennis ball as did his opponent Alexandr Dolgopolov.

Timea Babos of Hungary and her opponent France's Kristina Mladenovic both wore identical yellow tank dresses with white and gray trimming.

''The colors are a joke,'' Babos of Hungary told The Associated Press. ''It's the same for everyone - yellow, grey and white.''

"Having the same outfit was hilarious," she said of her look that was identical to her opponent's. "Everyone was joking about it. They said, 'It doesn't matter, you look better.' "