 Born in Istanbul, he began 1949 sports wrestling in the "Istanbul Güreş Ihtisas Kulübü", a club specialized in wrestling.Competing in Greco-Roman style, Müzahir Sille became gold medalist in wrestling at the 1960 Summer Olympics after he won the silver medal twice at World championships and ranked 4th at the 1956 Summer Olympics.He continued his wrestling career from 1961 on in the wrestling club KSV Witten 07 in Germany along with his teammate Mithat Bayrak, where he became regional champion.