Kayla Han, only recently a teenager, electrified U.S. Swimming Trials Wave I with a come-from-behind win in the B final of the women’s 400m IM. #NBCSports #KaylaHan #Swimming » Subscribe to NBC Sports: » Watch Live Sports on NBCSports.com: NBC Sports Group serves sports fans 24/7 with premier live events, insightful studio shows, and compelling… Continue reading 13 year old Kayla Han's INCREDIBLE comeback win at US Swimming Trials | NBC Sports