Unbeaten light heavyweight contender Artur Beterbiev (9-0, 9 KOs) will battle veteran Argentine Olympian Ezequiel Maderna (23-2, 15 KOs) in a 12-round showdown that headlines Premier Boxing Champions (PBC) live on ESPN and ESPN Deportes Saturday, June 4 from Bell Center in Montreal. Televised coverage begins at 11 p.m. ET/8