Video: U.S. mixed 4x400m relay DQs in prelims on late exchange
Read full article: Video: U.S. mixed 4x400m relay DQs in prelims on late exchangeAmericans Elija Godwin and Lynna Irby pass the baton outside the exchange zone, disqualifying the Team USA and its first-round win in the mixed 4x400m relay prelims; the Dominican Republic also DQs on a zone order rule.