<p>Tennis great Rafael Nadal's new app offers in-depth tennis tutorials.(Photo: Vstrator)Story HighlightsApp lets consumers capture and analyze video of ground strokesUsers can compare their technique with Nadal and other playersNadal rarely does endorsements but made an exception for Vstrator</p><p>SAN FRANCISCO Tennis great Rafael Nadal is ready for his comeback.</p><p>Since a knee injury sidelined him after this year's Wimbledon, he's been out of action. But he'll be back at the Australian Open next month, and with a new iPhone app.</p><p>The new Rafael Nadal Tennis Academy App, developed with video-analysis firm Vstrator, will be available within the next few days on iTunes. It offers in-depth tennis tutorials of Nadal's strokes, along with Vstrator's easy-to-use video coaching tools.</p><p><a href="http://www.usatoday.com/story/tech/2012/12/25/nadal-iphone-vstrator/1783139/">Keep reading...</a></p><p>Read also:</p><p><a href="http://www.tennisworldusa.org/Rafael-Nadals-new-iPhone-app-to-be-out-in-the-coming-days-articolo7493.html">Rafael Nadals new iPhone app to be out in the coming days</a> (Tennis World - the place for Tennis News and Tennis Tournament)</p><p><a href="http://www.tennisearth.com/news/tennisNews/Rafael-Nadal-to-launch-iPhone-application-77182.htm">Rafael Nadal to launch iPhone application</a> (TennisEarth.com)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=dZxlucvu2KXDbLMidG7s6HEpLE3lM&ned=us">5 additional articles.</a></p>