Del Potro ends Federer romp at US Open

Juan Martin del Potro brought Roger Federer’s five-year dominance at the US Open to an end at Flushing Meadows – and then pledged to work even harder to emulate the world number one.

The 20-year-old sixth seed became the first man since fellow Argentinian David Nalbandian in the 2003 fourth round to beat Federer at Flushing Meadows, winning a grand slam in his first final and breaking the Swiss star’s 40-match winning streak.