After only four matches between the pair in the last two seasons, including the recent meeting at the Barclays ATP World Tour Finals in London, the world's top two players now play for charity in Zurich on 21st December 2010 from 19:30 GMT and then Madrid on 22nd December 2010 from 18:00 GMT.
*TennisTV.com will stream both matches LIVE and in high quality!
All proceeds raised from both matches will go to the Roger Federer Foundation and Fundación Rafa Nadal.
You can watch these unmissable matches LIVE on TennisTV.com for $9.99/ €7.49 giving you access to both matches plus access to all TennisTV.com videos, including both matches available in full on demand, until 31st December 2010.
Alternatively if you wish to donate directly to the foundations please see below for details:
Click here to donate to the Roger Federer Foundation.
Click here to donate to the Fundación Rafa Nadal.
Please visit TennisTV.com for further details on how to watch this fantastic finale to the tennis year.
* Unfortunately both matches are not available to watch in Spain due to rights restrictions -