Brazil and Peru have four points each, but the host leads on tiebreakers. They face off in Sao Paulo, with the winner to advance in first position. If they draw, Venezuela could top the group if it beats Bolivia by four goals or more in Belo Horizonte.
If Venezuela draws, it will finish third and need to wait for other results to know its future.
Bolivia has remote possibilities of advancing. It will need to hammer Venezuela to make up for the six goals it has conceded so far.
With Colombia through as group winner, the focus is on Argentina in last position with one point.
To finish second, Lionel Messi’s team will need to beat Qatar in Porto Alegre on Sunday and hope Paraguay, with two points, doesn’t win against Colombia in Salvador. If Paraguay wins, Argentina will finish third.