USMNT vs. Mexico: Antonee Robinson, Sergiño Dest explain what awaits young players in heated rivalry

PHOENIX — The first two U.S. matches of this international window were proceeding in the manner and temperament expected from friendlies at the start of a four-year cycle chugging toward the 2030 World Cup.There were imperfections and breakthroughs, youthful lessons, mass substitutions and an underlying acceptance that the results did not mean that much.Then in the waning moments of the 4-2 U.S. victory over Chile on Tuesday in St. Louis, tempers flared, blood boiled and benches emptied. I