What boxer defeated Sugar Ray Robinson and vacated his belt in 1953?
Randolph Turpin: Randolph Adolphus Turpin (7 June 1928 – 17 May 1966), better known as Randolph Turpin, and in the United States also as Randy Turpin, was an English boxer who was considered by some to be Europe's best middleweight boxer of the 1940s and 1950s. Randolph Turpin:  In 1951 he became world middleweight champion when he defeated Sugar Ray Robinson.
i don't know