The undisputed number one on the tennis court, Novak Djokovic, this year is now assured of taking the top ranking over 2012 as Nadal's latest loss will make him unable to surpass Djokovic on men's world rankings for the rest of 2011. If anything, it is a testament how difficult it is to be a top dog in men's tennis. And, all apologies, a further testament to the greatness of Roger Federer. But coming 2012, I hope Federer will still challenge Djokovic and Nadal. Perhaps, one grand slam more, for the road?