Chile star Alexis Sanchez has questioned Uruguay's sportsmanship after his nation lost 3-0 on Tuesday.
Goals from Diego Godin, Alvaro Pereira and Martin Caceres clinched the victory for Uruguay in CONMEBOL World Cup qualifying.
The game between the South American rivals had eight yellow cards while Jorge Valdivia was sent off for Copa America holders Chile in the final moments.
There are two explanations for the surprise top two in South America's World Cup qualifiers.
Firstly, Ecuador, with a 100 percent record, and Uruguay, three points behind, lead the field because of their own merits.
Ecuador have a well consolidated idea of play, breaking at pace with very dangerous wingers. And now, in Gustavo Quinteros, they would seem to have a quality coach who has brought his own refinements, protecting a suspect defence by making his team mark aggressively higher up the pitch.