Monica Seles and Cristian de la Fuente by Bob D'Amico/ABC
As Dancing with the Stars' newbies get ready to dazzle on the dance floor - the hit reality competition returns Monday, March 17 - we've got a week-long guide to who's hoofing for Season 7. Check back each day for our profiles of more pairings. - Deborah Starr Seibel

Monica Seles

Age 34
Best Known For Her nine Grand Slam tennis titles between 1990 and 1996
Lives In Sarasota, Florida
Partner Jonathan Roberts
Advantages During her career, Seles' extraordinary speed, footwork and stamina helped her become the No. 1 player in the world.
Disadvantages "Monica is one of our more nervous contestants this year," says DWTS executive producer Conrad Green. "This is a huge departure for her." And she's got a bad left foot that effectively sidelined her tennis career. "I've had numerous injuries to that foot," she says. "That was one of my biggest worries."

Cristián de la Fuente

Age 34
Best Known For Being a telenovela heartthrob who has also appeared on Ugly Betty and CSI: Miami
Lives In Los Angeles
Partner Cheryl Burke
Advantages Dancing in Chilean and American nightclubs. "When I came [to the U.S.], I met a lot of Cuban and Dominican girls who would teach me," says De la Fuente. "But it was private coaching, not from professionals."
Disadvantages Less name recognition and a tendency to let his emotions rule. "I hope the nerves don't take over," says De la Fuente. "Most of the winners have been professional athletes, so when the stakes are really high, they have the ability to control their emotions and their fears. That's the only thing that could play against me."

Poll: Which Dancing duo are you rooting for? Vote here.

Don't miss TV Guide Network's 25 Things You Didn't Know About Dancing Favorites , airing Sunday, March 23, at 8 pm/ET.

More Dancing profiles:
" Shannon Elizabeth and Penn Jillette
" Marissa Jaret Winokur and Mario
" Kristi Yamaguchi and Adam Carolla
" Marlee Matlin and Jason Taylor