It was a star-studded Tuesday at the Nick Bollettieri's Tennis Academy: Maria Sharapova, Jelena Jankovic and Nicole Vaidisova were seen training there and Jola, the mother of a full time student at Nick's, shot a video where you can see how the top tennis players are practicing.
Additional info: Check out this cute site, Jankovic’s and Sharapova’s cars next to each other.
BTW: Jelena Dokic has also been at the Academy these days, but she wasn't caught on camera. However, Nick Bollettieri himself is regularly updating us on what Dokic has been doing. (source: HCFoo's Tennis Blog)