كتب : وكالات
Sergio Aguero scored a brace within six minutes, 52 and 58, and Juan Roman Riquelme also tallied in the 76th minute to fire the Albiceleste into the final.
Brazil ended the game with only nine men on the pitch as Lucas and Thiago Neves were dismissed.
The Argentinean star-studded squad will defend their title against Nigeria, who beat Belgium 4-1 earlier.