Viteri is arguably at his best in a penalty shoot-out, although the Emelec keeper has proved a strong shot-stopper in open play.
He lies behind Jose Francisco Cevallos and Geovanny Ibarra in the order for the number one shirt.
And, barring a major injury disaster, he is not expected to feature even on the South American side's bench.
The tournament should act as little more than good experience for Viteri.