Notes: 'J-Rock' added to Wilder-Molina card

Julian Williams, right, has won six fight in a row since a no-contest against Hugo Centeno Jr. in December 2013. Minas Panagiotakis/Getty Images

A few notes from around the boxing world

• Up-and-coming Philadelphia junior middleweight Julian "J-Rock" Williams (19-0-1, 11 KOs) has been added to the undercard of the Deontay Wilder-Eric Molina heavyweight title fight on June 13 (Showtime, 9 p.m. ET) in Birmingham, Ala. Williams is scheduled to boxed Russia’s Arman Ovsepyan (14-4, 11 KOs) in a scheduled 10-round bout. The Showtime telecast will include Wilder (33-0, 32 KOs) against Molina (23-2, 17 KOs) and open with Jose Pedraza (19-0, 12 KOs) against Andrey Klimov (19-1, 9 KOs) for a vacant junior lightweight world title. The Showtime Extreme telecast (7 p.m. ET/PT) will open with Williams-Ovsepyan and also include the lightweight title eliminator between Ivan Redkach (18-0, 14 KOs) and Dejan Zlaticanin (20-0, 13 KOs).

• Puerto Rico’s McJoe Arroyo (16-0, 8 KOs), 29, and Arthur Villanueva (27-0, 14 KOs), 26, of the Philippines, have been ordered to fight for junior bantamweight belt recently vacated by South Africa’s Zolani Tete, who declined to accept the $75,000 he was due under the terms of a recent purse bid for him to defend against Arroyo. The IBF has ordered Arroyo promoter Peter Rivera of PR Best Boxing, who won the Tete-Arroyo purse bid, to negotiate an agreement with Villanueva promoter ALA Sports International. Both camps have notified the organization that they are interested in the fight. If negotiations are not complete by June 28 a purse bid will be ordered.

• Middleweight Alfredo Angulo (22-5, 18 KOs) will take on Delray Raines (20-10-1, 14 KOs) in a 10-round middleweight bout and featherweight contender Marvin Sonsona (19-1-1, 15 KOs) will face Jonathan Arellano (15-5-2, 3 KOs) in a 10-round bout on the undercard of the welterweight bout between Robert Guerrero (32-3-1, 18 KOs) and Aron Martinez (19-3-1, 4 KOs) on Saturday (NBC, 3 p.m. ET) at the StubHub Center in Carson, California. Angulo, one of boxing’s most crowd-pleasing fighters, is trying to end a three-fight losing streak. Heavyweight Chris Arreola was initially supposed to be on the card but dropped off. After the NBC telecast there will be more live boxing from the card on NBC Sports Net (4:30 p.m. ET) but it has not been announced which bouts will be on that telecast.