Japan failed to convert on a slew of chances in their Copa America opener as a brace from Eduardo Vargas helped two-time defending champion Chile to a commanding 4-0 win Monday.Japan, invited to the 12-nation South American championship along with Asian Cup winners Qatar, were solid in defense until a 41st-minute goal dented their initial confidence at Sao Paolo's Morumbi Stadium.Three more Chile goals in the second half gave the young Japanese squad a taste of the quality they will face at South American soccer's top table.Despite the disappointing result, Japan manager Hajime Moriyasu sai…READ FULL ARTICLE