http://www.**********.net/on-tour/t...jokovic_needs_to_be_more_positive_martin.html "With Novak the world could be his oyster," said Martin. "His physical talent is just spectacular and he has got much more fight in him than I think most people give him credit - but it is awfully difficult. “The biggest challenge is for him to organise his mind to the point where he can be at peace with any result, any shot, any point, any game, any set, any match. And as he improves that, I think it will dictate his success.” “Right now when he is nervous he gets a little cautious,” said the 39-year-old. “He is an incredible defender but he is a much better player when he defends when he has to as oppose to defending when he chooses. “If he makes a conservative effort to continue to work away from those habits, 2011 should be a good year, 2012 should be a good year and onwards.” Interesting interview a while back from todd Martin, who even back then noticed djokers physical talent and fight even though he was thought as a whimp back then.