[ Ссылка ]
HD video of Jelena Jankovic working on her groundstrokes in preparation for the 2010 tennis season in Florida.
This clip is taken from TennisSpeed's vast HD stroke video library of the world's top tennis players.
![](https://i.ytimg.com/vi/xEw8aRMIqM8/maxresdefault.jpg)
[ Ссылка ]
HD video of Jelena Jankovic working on her groundstrokes in preparation for the 2010 tennis season in Florida.
This clip is taken from TennisSpeed's vast HD stroke video library of the world's top tennis players.