A few notes from around the boxing world:
• Two days before he will step into the ring at the Prudential Center in Newark, New Jersey on Friday night on the Antonio Tarver-Steve Cunningham undercard, Puerto Rico native Luis Rosa (20-0, 10 KOs), a 24-year-old junior featherweight, re-signed with promoter Lou DiBella. "Luis Rosa has already proven that he is a serious contender in the junior featherweight division," DiBella said. "I am very pleased to continue with our relationship. I expect big things from Rosa in the near future and I believe he is a future world champion." Rosa, who has been with DiBella since 2010 (when he turned pro) faces Mexico's Giovanni Caro (24-16-4, 19 KOs) in an eight-rounder. "I am glad to have re-signed with Lou and continue my career under the [DiBella Entertainment] banner," Rosa said. "I am ready to put on a great show on Friday night. I have had another great camp and am in tremendous shape for this fight. I am excited and ready for another victory come Friday night."
• Cruiserweight prospect Oleksandr Usyk (7-0, 7 KOs), a 28-year-old southpaw and 2012 Olympic gold medalist from Ukraine, will headline an Aug. 29 card at the Palace of Sports in Kiev, Ukraine when he takes on South Africa's Johnny Muller (19-4-2, 13 KOs) in a scheduled 10-round fight. "This is another test for Oleksandr. Muller is a tough, very experienced fighter with plenty of knockouts," said promoter Alexander Krassyuk of K2 Promotions Ukraine. "As he continues to fight and win impressively, Oleksandr's worldwide popularity continues to grow." Usyk will be fighting for the first time since scoring an eighth-round knockout of Russia's Andrey Knyazev on April 18 at the Palace of Sports. Also on the card, junior welterweight Denys Berinchyk, a 2012 Ukrainian Olympic silver medalist, will make his professional debut in a four-rounder against Belgium's Tarik Madni (19-8-1, 1 KO).
• Puerto Rican flyweight contender McWilliams Arroyo, twin brother of newly crowned junior bantamweight world titleholder McJoe Arroyo, has been added to an Aug. 22 card in his hometown of Fajardo, his first hometown fight in four years. He will face Robert Kanalas (9-3, 7 KOs) in an eight-rounder on the card headlined by bantamweight Emmanuel Rodriguez against Alex Rangel. Arroyo (16-2, 14 KOs), 29, traveled to Thailand last September and dropped a split decision challenging Amnat Ruenroeng for his world title. Arroyo rebounded with an April victory and was on the short list to land a title shot against Roman Gonzalez on Oct. 17 on the HBO PPV undercard of the Gennady Golovkin-David Lemieux middleweight title unification bout in New York. But Gonzalez finalized a deal to face former unified titlist Brian Viloria, leaving Arroyo looking for a fight.