Each of Brazil's last three wins against Argentina have come to nil, and with the five-time World Cup winners yet to concede a goal in their four Copa America matches so far, this could be a solid value selection.
Scaloni's men failed to score when they faced Colombia in the group stages, and have consistently struggled to net against top-class opponents.
In the last CONMEBOL World Cup qualifying tournament they were the second lowest-scoring side after Bolivia and despite the presence of Lionel Messi, there should be plenty of interest in opposing Argentina to score.
Uruguay beat Chile in their last group game to finish top of Group C and avoid Colombia in the next round. They are firm favourites here. Peru qualified for the knockout round with four points from three games, though were thrashed 5-0 by hosts Brazil in their last game. Peru actually won the last encounter between the two nations but Uruguay were unbeaten in the previous five matches.