I was talking to a friend of mine yesterday and remembered tennis in late 70s with Borg-McEnroe rivalry or Lendl-McEnroe in 80s. I mean, I missed the big good rivalries in tennis, it is good for sport and for the game of tennis. Right now the game is a little boring with such Federer dominance. I love Federer´s game but the sport would be more interesting with some player who can give Federer a really good rivalry, maybe Safin or Nadal, i don´t know, whoever. Do you think that could be possible nowadays?