USA dominates in first mixed 4×400 relay, Allyson Felix breaks Usain Bolt’s record
The entire U.S. mixed 4×400 relay team made history, but Allyson Felix made history of her own, breaking Usain Bolt’s record for most world titles.
The entire U.S. mixed 4×400 relay team made history, but Allyson Felix made history of her own, breaking Usain Bolt’s record for most world titles.