Roger Federer knew: 'I will challenge Andy Roddick for the ATP throne'

Winning his first Major title at Wimbledon 2003, Roger Federer became a contender for the top-tier spot in men's tennis. The Swiss had the opportunity to become world no. 1 in Montreal, Cincinnati and the US Open, losing to Andy Roddick and David Nalbandian and having to wait until the following year to achieve that.