South African Stanley Chistodoulou will be the third man the ring for the WBA Cruiserweight title fight between Denis Lebedev, regular champion and Guillermo Jones, champion in recess, Lebedev vs Jones takes place in the Crocus City Hall, Myakinino, Russia on May, 17.
The officials in charge of the scoring are: Giuseppe Quartarone from Italy, Oliver Brien from Germany and Leszek Jankowiak from Poland.
While the Heavyweight the match between Alexander Povetkin and Andrzej Wawrzik will be refereed by Russell Mora from USA.
The score cards will be in charge of Cristodoulou, Brien and Quartarone.
George Martínez will supervise both fights.