David Nalbandian will lead Argentina's Davis Cup team against Great Britain in Buenos Aires next month.
David Nalbandian is likely to go head-to-head against Andy Murray
World number 10 Nalbandian will team up with Juan Monaco, Agustin Calleri and Jose Acasuso against a GB side headed up by Andy Murray, who is ranked nine.
"On paper, we are favourites," said Argentina coach Alberto Mancini. "They can count on Andy Murray - a very good, very experienced player.
"But clay is not his favourite surface. We're hosts, our fans will be close."
Britain are unseeded and face a daunting trip to the third seeds - the 2006 finalists - for the first-round tie at the 15,000-capacity Parque Roca from 8-10 February.
John Lloyd's inexperienced GB team will also include Murray's brother Jamie as well as Jamie Baker and Alex Bogdanovic.
Britain, who are making their first appearance in the World Group since 2003, have not won a World Group tie since Lloyd, Jeremy Bates and Colin Dowdeswell defeated Spain in 1986.