Howard Stern Rips 'F***nut' Novak Djokovic Over COVID-19 Vax Stance

Howard Stern is unloading on Novak Djokovic over his COVID-19 vaccine drama ... calling the tennis superstar a "d****bag," "f***ing a**hole," and a "f***nut" in a fiery rant. 34-year-old Djokovic has been fighting like hell to compete in the…