03-07 - a weak era.
I've only been following tennis for about five years so I don't remember who the top three players were for each of those years. Thankfully, Wikipedia is at hand...
2003 = Roddick, Federer, Ferrero
2004 = Federer, Roddick, Hewitt
2005 = Federer, Nadal, Roddick
2006 = Federer, Nadal, Davydenko
2007 = Federer, Nadal, Djokovic
At first glance, that doesn't seem as scary as the opposition these days.