Argentina have beaten Uruguay 1-0 in their second match at Copa America, making Lionel Messi's team co-leaders of Group A with Chile with four points each.
Midfielder Guido Rodriguez scored the only goal at the Mane Garrincha stadium in Brasilia with a header in the 13th minute after Messi crossed from the left. The ball hit goalkeeper Fernando Muslera's right post before going in.
Earlier Chile beat Bolivia 1-0 on a goal by English-Chilean striker Ben Brereton.
Seeking some defensive solidity, Argentina changed nearly all of back four after the 1-1 draw with Chile.