Jet setter Roger Federer has been spotted in yet another “top secret” training ground - this time a clay court facility on the outskirts of Zurich, with a lovely view of Lake Zurich*.
Blick reports that he is training with his under-the-radar coach, Severin Luthi, and a sparring partner named Roman Valent, who won Junior Wimbledon in 2001 but has left the pro tour due to injury.
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