Former undisputed cruiserweight champion Aleksandr Usyk and Chazz Witherspoon workout ahead of their heavyweight clash on October 12 inside Wintrust Arena in Chicago. Usyk, the 2018 Ring Magazine fighter of the year, will make his debut in the premier division of professional boxing. Usyk-Witherspoon will headline a card from Matchroom Boxing, from powerhouse promoter Eddie Hearn, streamed live on DAZN.