The Chicago Tribune (K.C. Johnson) reports: ForĀ  James Johnson, fighting is a family thing. The Bulls’ affable first round NBA draft pick detailed Thursday how he grew up the middle of nine children in Cheyenne, Wyo., surrounded by black belt kickboxers. Johnson’s father, Willie, is an ex-marine who won seven world kickboxing championships and runs J & P’s Martial Arts school in Cheyenne. Eight of Willie’s children, including James, are black belts in the sport with only James’ 10-year-old sister currently sporting just a blue belt. Johnson said he went 20-0 in kickboxing bouts before “retiring.”