Top-seeded Argentine Juan Martin del Potro successfully defended his Estoril Open title on Sunday with a 6-4, 6-2 victory over second seed and 2007 runner-up Richard Gasquet of France in 88 minutes. It was the first No. 1 seed versus No. 2 seed final in four years (Federer-Davydenko) at the Estadio Nacional.
Del Potro...