THAT'S TACKY! VENUS WILLIAMS PLAYS IN THE FRENCH OPEN WITH LINGERIE INSPIRED OUTFIT!

Venus Williams may be a pro tennis player, but can she do the cancan?

At the French Open Sunday, the sports star's lingerie-inspired outfit got tongues wagging more than her winning game.

Williams' micro-mini black lace dress complete with red hot piping, not to mention her nude unmentionables, harked back to a 19th century chorus line.

As she worked hard on the court, the pro's plunging corset threatened to slip off her chest as she flashed a pair of nude shorts.

The 29-year-old pro told the Los Angeles Times that her outfit was "about illusion...a lot of my motif this year."

She added that she tends to bring eight to ten outfits to each tournament in case she wins.

Despite her flagrant disregard for traditional tennis attire, Williams' game on Sunday was as professional as they come.

Not only did she eclipse Swiss opponent Patty Schnyder in fashion sense, Williams also beat the former top-10 player 6-3 on the first day of the tournament.

Despite her first round win, Williams is not a fan of the French Open.

She has lost in the third round of the last three tournaments (one of which was to her younger sister, Serena).

Despite her shortcomings, Williams has ranked at No. 2 for the first time since 2003.