So no, the handsome young Rafa is NOT the Spanish Athlete, but...

But this picture of him with the Spanish Flag is great.  He will be the flag carrier.
.
He also talked about his time in Beijing (hat tip  to Socialite Life)...
.

The world renowned tennis star will be returning for the London Olympics and is nastolgic of his experience during the last one in 2008. “In Beijing 2008, when I lived in the Village with everybody, I discovered what the Olympic spirit is all about. I think it was the best experience I’ve had in my career,” commented Nadal. The 26-year-old is looking to the future with immense gratitude and can-do spirit.