By Clinton Porteous BBC correspondent in Santiago, Chile

Full Olympic tennis results

Olympic fever has gripped the nation after Gonzalez earlier won a bronze medal in the men's singles.

And Massu will soon compete in the men's singles final against the unseeded American Mardy Fish.

Moments after Chile won its first gold medal, people took the streets and drivers started honking their horns.

Many households were watching their television all day as three local TV channels broadcast the Olympic tennis from Athens.

Football is the dominant sport in Chile, and four years ago Chileans celebrated when their football team won a bronze medal at the Sydney 2000 Olympics.

But their tennis players have now delivered the nation's first gold medal and there could be more to come.