Notes: Heavyweight Ruiz to face former title challenger Austin

Unbeaten Andy Ruiz, left, is interested in fighting Joseph Parker for one of the belts stripped from Tyson Fury. Chris Farina/Top Rank

A few notes from around the boxing world:

• Heavyweight Andy Ruiz (26-0, 17 KOs), 26, of Imperial, California, who has not fought since October after pulling out of at least one fight because he was "not mentally ready," according to promoter Top Rank, has an opponent for his return. He will face long-faded former world title challenger Ray Austin (29-6-4, 18 KOs), 45, of Cleveland, in an eight-round fight on May 14 in Studio City, California. As a mandatory challenger, Austin got knocked out in the second round by Wladimir Klitschko in a 2007 championship fight. Austin will be fighting for only the second time since 2011. The fight will be on the undercard of Top Rank's "Solo Boxeo Tecate" series on UniMas. Lightweight prospect Saul Rodriguez (19-0-1, 14 KOs) headlines the show against Daulis Prescott (31-3, 23 KOs).

• Former welterweight titlist Kermit Cintron (35-5-2, 28 KOs), 36, of Reading, Pennsylvania, who has not fought since March 2014, makes his ring return on Friday night at the 2300 Arena in Philadelphia. He will face Eduardo Flores (23-20-3, 15 KOs) in a six-round junior middleweight bout. "I am just trying to get my feet wet again," Cintron said. "I am excited for this opportunity and to be back with [promoter] Marshall [Kauffman]. Marshall and Joe Pastore trained me to get to the top. Now Joe is training me and Marshall is promoting me and I am happy to be back with them. I am just trying to get back to being my old self again. I have been working on walking my opponents down."

• British heavyweight prospect Hughie Fury (20-0, 10 KOs), 21, has been added to the undercard of the rematch between heavyweight champion Tyson Fury, his cousin, and Wladimir Klitschko on July 9 at Manchester Arena in Manchester, England. Hughie Fury, coming off a lopsided seventh-round technical decision against Fred Kassi on April 30, does not yet have an opponent. Tyson and Hughie Fury are both trained by Peter Fury, Hughie's father and Tyson's uncle.