Stanislas Wawrinka won his first title since 2011 when he upset top seed David Ferrer 6-1, 6-4 to claim the Portugal Open title on Sunday. The Swiss claimed his fourth career trophy, three of which have come on clay. The 28-year-old last won a tournament at Chennai in January two years ago. Ferrer, ranked fourth in the world, was burdened by 31 unforced errors in the 64-minute loss. The win was the second for Switzerland at the tournament after Roger Federer lifted the 2008 title and played the final two years later.