Light heavyweight champion Adonis Stevenson (27-1, 22 KOs) has not fought since a third-round shellacking of club fighter Tommy Karpency in September and contender Artur Beterbiev (9-0, 9 KOs) has been idle since last June because of shoulder surgery that forced him to drop out of a November world title eliminator. But both of the Montreal-based fighters have bouts in the works. Yvon Michel, who promotes both of them, told ESPN.com on Tuesday that Beterbiev will return in June and that Stevenson’s next defense will be in July. The specific dates and locations have not been set yet.

Unified flyweight titleholder Juan Francisco Estrada (33-2, 24 KOs), of Mexico, has been out of action since a 10th-round knockout of Hernan “Tyson” Marquez last September, mainly because of a hand injury that required surgery. But when Estrada returns to the ring this summer -- date to be determined -- it could be in a title defense against junior flyweight titleholder Donnie Nietes (37-1-4, 21 KOs), of the Philippines, who would move up in weight for a fight that could take place in Southern California. Zanfer Promotions, which promotes Estrada, and Nietes representative ALA Promotions, are in discussions to make the match. If it’s finalized, the winner could find himself getting a shot at pound-for-pound king and lineal flyweight world champion Roman “Chocolatito” Gonzalez (44-0, 38 KOs) in the fall, although Gonzalez first defends against McWilliams Arroyo (16-2, 14 KOs) on April 23.

Former three-division world champion Shane Mosley (49-9-1, 41 KOs), 44, who ended a nearly two-year layoff with two wins in 2015, announced that Hall of Famer Roberto Duran will train him for his next bout, which Mosley claimed will be for a world title, although he did not identify the opponent. "I am very happy to have Duran on my team,” Mosley said. “This is the type of addition that will push me even farther. He is a fighter that I looked up to when I was coming up. How can you not learn from a legend like him?"