Google Glass allows fans of the Swiss master to see exactly what he sees in this amazing video.
Ever wondered what it would be like to play tennis like Roger Federer?
Well wonder no more as the former world number one gives fans a unique insight into a training session with his coach Stefan Edberg.
From his footwork and where his head is at on the point of contact of the racquet, young players and general fans of the game can learn much from the Fed Express in this awesome video.
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