Southern Korean swimmer who received the precious metal in the men’s 400-meter freestyle and became the 1st Korean to medal in going swimming. He started competitively going swimming at age seven. He was exempted from 2 yrs of mandatory armed service services in South Korea. He was created to a dad who was simply a saxophone participant and a mom who was simply a dancer. He defeat Michael Phelps in the 100 meter freestyle in the Santa Clara Grand Prix in 2011.