Valencia: Pospisil upsets Isner in first round play
Of all the personalities, Novak Djokovic is the one who has most embraced his fame. Rafael Nadal does his duty, but you get the sense he's shy and prefers a quiet time. Roger Federer is friendly, but aloof. Andy Murray is moody and when he isn't, he seems kinda dull. Djokovic likes being Djokovic, and