LISBON (AP) -FC Porto was held to a scoreless draw at Gil Vicente on Sunday as it stumbled in the opening of its Portuguese league title defense.
With its Brazilian internationals just back from the Olympics, Porto failed to break through the well-organized Gil Vicente defense.
Sunday saw three other draws in the Portuguese league.
Sporting Lisbon drew 0-0 at Guimaraes, Setubal drew 2-2 at Nacional and Fabio Espinho scored the 80th minute to give the promoted Moreirense a 1-1 draw at Pacos Ferreira.
On Saturday, Benfica, last season's runner-up, drew 2-2 with Braga.