Coach Oscar Washington Tabarez has called on "all of Uruguay'' to play the World Cup qualifier against Argentina, with both teams fighting for the last South American automatic qualification berth.
The Charruas and the Albicelestes go head to head tomorrow to join Brazil, Paraguay and Chile in South Africa.
A win for either side in Montevideo would clinch automatic qualification, while a draw would see Argentina progress directly assuming Ecuador do not beat Chile in Santiago by more than five goals.
Any sort of win for Ecuador would see them progress to a play-off with a CONCACAF nation at the expense of either Argentina or Uruguay.
"Argentina is very tough for us. The power of the team comes from the players," Tabarez said. "And no-one can argue [against], nor doubt the ability and quality of the Argentine players.
"I want all of Uruguay to play this match. I want all Uruguayans to cheer the team and they will surely feel this team will do their best for our people. I want to tell fans they have to trust in this team because we'll reply in the best way.''