Even so, Rajanna Sreedhara says he might not have come back if Indian medicine hadn't changed so much, at least in the modern hospital where he works.

NPR: India's Doctors Returning Home

He said so much time had passed and Germany had changed geographically, with many letters addressed to places that no longer formed part of modern Germany.

BBC: Jersey

So success has not changed Ramsey, and he still pops into his old school about once a week despite attracting so much attention.

BBC: ?5m Ramsey 'popular and talented'

"He used to (serve and volley), but I think the conditions of the grass have changed so much -- the balls are probably heavier, the courts are much, much slower, so there is far less serve and volley, " Henman told CNN.

CNN: Death of a tennis art: Is this the end for serve and volley?