As a promoter that has always shown loyalty toward HBO’s boxing brand and expressed admiration for it, Duva doesn’t know what the network’s exit from the sport will mean moving forward.

Ultimately, 2017 could potentially be a pivotal year for the sport. A year that works out the kinks of PBC, Top Rank, Roc Nation, K1, Showtime, HBO, Golden Boy and, for the most part, they can all ...