Oleksandr Usyk

Oleksandr Usyk of the Ukraine celebrates after winning the gold medal in heavyweight boxing. (AP Photo/Mark Duncan)

Oleksandr Usyk of the Ukraine celebrates after winning the gold medal in heavyweight boxing. (AP Photo/Mark Duncan)

Ukraine’s Oleksandr Usyk celebrates after defeating Italy’s Clemente Russo to win the gold medal for the men’s heavyweight 91kg boxing competition at the 2012 Summer Olympics, Saturday, Aug. 11, 2012, in London. (AP Photo/Mark Duncan)