Sviatoslav Mykhailiuk was born in 1997 in Cherkasy, Ukraine. He is the son of Inna and Iurri Mykhailiuk. His mother is a high school biology teacher and his father is a college history professor. "Svi" is fluent in three languages: Russian, Ukranian and English. He Attended high school at Cherkasy First City Gymnasia, and in addition to basketball, he also lettered in soccer and ping pong. Before playing college ball at Kansas, Mykhailiuk played for Cherkaski Mavpy in the Ukrainian Basketball SuperLeague from 2012-14. He was also a member of the Ukrainian national team at the 2014 FIBA World Cup. While at Kansas, Mykhailiuk was a two-time Academic All-Big 12 award winner. Also, he was 17 years old when he started playing at Kansas, which made him the youngest player in Big 12 history.