The two greats face off at Wimbledon on Friday with both having questions to answer about their fitness and form respectively Novak Djokovic has conducted about as many press conferences in his career as any other tennis player in history. He knows the deal: after a victory, particularly a big one, he will usually be asked by a journalist to preview his next match. He is always ready with a long, expansive response summarising his opponent and his anticipation for the next encounter. He has mast