Knocking on the door 👀🚪 Keenen Davis cruised to the fastest time of the day in the U20 men’s 400m hurdles, clocking 49.40 to secure the No. 1 qualifying spot for the final.   He’s just 0.12 seconds shy of the U20 meet record 😮‍💨   #TeamUSATF #USU20Champs #usatf #400mhurdles #keenendavis