Argentina have fought back in the Davis Cup final with a doubles win against Spain in Seville.

The visitors had trailed 2-0 after Friday's defeats in the opening singles matches.

However, David Nalbandian and Eduardo Schwank defeated Fernando Verdasco and Feliciano Lopez in straight sets 6-4 6-2 6-3 on Saturday.

The Argentines now need to win both of Sunday's singles matchups to claim their first Davis Cup title.

Juan Martin Del Potro will take on Rafael Nadal in the first contest, with Juan Monaco up against David Ferrer in the second.