5. Guillermo Vilas
While not the household name that Messi or Maradona is, make no mistake this southpaw from Mar del Plata made quite the name for himself in the world of tennis. A winner of four Grand Slam titles, he owned 1977 by winning seven consecutive titles after Wimbledon. He also took Argentina to its first ever Davis Cup Final in 1981. Vilas’s success on the court led to a surge in popularity of tennis in Argentina and throughout Latin America. Guillermo Cañas andGuillermo Coria were named after him.