NEW YORk, New York --

Monica Seles has one word of advice for the new contestants of “Dancing With The Stars” — well, one word, repeated thrice — practice, practice, practice.

“Oh boy, be ready for lots of practice,” she told Access Hollywood at the “Entourage” season five premiere in New York on Wednesday night. “And [a] crazy schedule. I was only on there for two weeks, so I really didn’t get to experience the whole show, but even the little that I was on, it’s a lot of work.”

Seles competed on the ABC show’s sixth cycle, pairing with professional dancer Jonathan Roberts.

The tennis champ says she’s pulling for another athlete this season, Olympic beach volleyball repeat gold medalist Misty May-Treanor.

“Misty May is on this, [I’m] rooting for her,” she said. “It should be very exciting.”

Seles, a nine-time Grand Slam winner who announced her retirement from the sport this past February, has found plenty of life after tennis and “Dancing.”

She kicked off her new Sirius Satellite Radio show, “The Monica Seles Challenge: 5 Weeks to Jump Start Your Life,” on Thursday.

“I’m very excited about that,” she said of the live five-week series. “You know, it’s just going to be a lot of women sharing stories, crying, laughing.”

As for her presence at the “Entourage” premiere, Seles said she had a lot in common with the HBO comedy.

“I’m a huge fan of the show,” she said. “I mean, it’s kind of similar to [the] tennis tour because we have our own entourage, but I think this is a much more fun entourage then I got to experience.”

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