World No.1 Jelena Jankovic finished her extensive fitness training in Mexico and is back in Florida working at the Nick Bollettieri Tennis Academy.
Jankovic, who is determined to make 2009 her best year ever, is practicing with her coach and Pat Etcheberry. Nick also gave his share, giving Jankovic some advice on her volleys.
The Serb is working hard both on her tennis and her fitness, aiming for one goal, to finally win her first singles Grand Slam title. From what we've seen so far, she's very serious! (source: Nick's Picks, photos: Nick Bollettieri)