MUST SEE: Cai Jiayun completes STUNNING comeback to win biathlon gold at the line | NBC Sports

China's Cai Jiayun defeated Ukraine's Grygorii Vovchynsky in a dramatic finish by 0.2 seconds, capturing his third gold medal of the Winter Paralympics. #NBCSports #CaiJiayun #Biathlon » 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 premier live events, insightful studio...