Seles as a tennis player wasn't exactly graceful either. I mean she was truly the Jan-Michael Gambil/Kaarsten Braasch of women's tennis. She never won on style points, and you could make a case that her strokes were among the least graceful ever. Her way of playing reminded me of someone swinging away brutally off both sides...with a meat cleaver in each hand. Her finest attributes on a tennis court was her racket head speed, unparalleled fearlessness to go for it without any hesitation on the biggest of points, her almost supernatural powers of concentration, her ball ANTICIPATION rather than her fleet feet, her freakish hand-eye coordination and ability to take it on the rise, etc. In other words, really none of her super strengths that made her so GREAT in tennis are really applicable here.
I think if you were looking for tennis players who might have potential on a show like this you'd look to people like Cedric Pioline, Guy Forget, Chris Evert, Gabriela Sabatini, Michael Stich, Goolagong, the Bryans, Corretja, Pernfors, Ferrero, Ferreira, Federer, Date, Moya, LEANDER PAES, Goran, Carlos Costa, Hingis, Arazi, Edberg, Rios, Safin, Malivai Washington, even Bruguera/Wilander, etc.
You probably WOULDN'T want to try this out on people like Lendl, Navratalova, Muster, Canas, Connors, Courier, Becker, Bhupati, Alberto Costa, Gambill, Gustaffson, Larsson, Todd Martin, Brad Gilbert, Arantxa, Hewitt, etc.
The guys who I think would be either REALLY surprisingly good or REALLY surprisingly bad with NO in between would be guys like...Chang, Alexandria Stevenson, Nadal, the Williams sisters, Capriati, Dent, Kafelnikov, Mauresmo, Henin, Patty Cake Scynder, Sampras, Agassi, Rafter, Krajicek, Korda, Cash, Santoro, Clement, Pozzi, McEnroe, Spadea, AND JUSTIN GIMELSTOB.
My pick though would be Korda as the surprise sensation of the season with his signature "scissor kick" quick-step shuffle.