The Ali Trophy semi-final bout in the cruiserweight edition of the World Boxing Super Series between WBO World Champion Aleksandr Usyk (13-0, 11 KOs) and WBC World Champion Mairis Briedis (23-0, 18 KOs) hits the Arena Riga, Latvia on January 27, 2018. “The stand-out atmosphere in the quarter-finals was the noise the fans made in …