Top two seeds David Nalbandian and Nikolay Davydenko remain on course to meet in the final of the Estoril Open after winning their respective last-eight matches.
Number one seed Nalbandian made short work of Portuguese wildcard Frederico Gil, dispatching the home favourite 6-1 6-2 to set up a meeting with Albert Portas.
Russian Davydenko battled to a 6-4 6-4 triumph over Gilles Muller of Luxembourg to set up a semi-final clash with Carlos Moya.