By Allan Fox: Murat Gassiev (25-0, 18 KOs) and Yunier Dorticos (22-0, 21 KOs) will be meeting in just a few hours for their crucial semifinals fight in the World Boxing Super Series (WBSS) to find out which one will be taking on WBC/WBO cruiserweight champion Oleksandr Usyk (14-0, 11 KOs) in the finals of the tournament on May 11.