Former lightweight titlist Brandon Rios (34-4-1, 25 KOs), 32, of Oxnard, California, will have his eye on one of the undercard fights on Saturday’s Amir Khan-Samuel Vargas show in Birmingham, England. If Sam Eggington (23-4, 15 KOs), 24, of England, beats Hassan Mwakinyo (11-2, 7 KOs), 23, of Tanzania, in their 10-round junior middleweight bout and is uninjured, Rios will face Eggington in a 10-rounder at 150 pounds on the Anthony Joshua-Alexander Povetkin card Sept. 22 at Wembley Stadium in London, Rios trainer Robert Garcia told ESPN on Thursday night. Rios would be looking to rebound from a ninth-round knockout loss to Danny Garcia on Feb. 17. Robert Garcia said if Rios, who has been sparring with fighters such as junior welterweight titlist Jose Ramirez, Vergil Ortiz and Esquiva Falcao in preparation, wins he would have two more fights as part of a three-fight deal with Matchroom Boxing promoter Eddie Hearn, who has been looking to sign American fighters for his U.S.-based DAZN cards. Eggington is best known for sending Paulie Malignaggi into retirement by knocking him out in the eighth round in March 2017.