16 year old Cooper Lutkenhaus eliminated in 800m heats of debut World Championships | NBC Sports

Cooper Lutkenhaus' first season on the big stage has been one for the record books, but the U18 800m world record holder's dreams of a global medal ended in the heats in Tokyo #NBCSports #CooperLutkenhaus #trackandfield » Subscribe to NBC Sports: https://www.youtube.com/nbcsports?sub_confirmation=1 » Watch Live Sports on Peacock: https://peacocktv.smart.link/v82e9dl56 NBC Sports Group serves sports fans 24/7 with pre...