back in action in a welterweight bout against former WBO Junior Welterweight Champion Mike Alvarado (34-2, 23 KOs) for the WBO International welterweight title. The fight was also a WBO welterweight title eliminator, with the winner to earn a mandatory shot against Manny Pacquiao for the title he regained April 12 against Timothy Bradley in their rematch. Despite the fight being a welterweight eliminator, it was agreed to be fought with a 143-pound maximum. Alvarado weighed in at 143.2 lbs. In a one sided bout, Márquez defeated Alvarado by unanimous decision with the judges scores of 119-108, 117-109, 117-109. Alvarado was down in round eight and Márquez was knocked down in round nine. Inactivity and retirement There were negotiations from January 2016 for a fight between Márquez and former four-weight division champion Miguel Cotto. The main issue between both camps being the weight with Márquez looking to fight at no more than 147lbs and Cotto looking to fight at 155lb catchweight. Miguel Cotto Promotions told ESPN.com that negotiations had broken down on August 2 as both camps could not settle on what weight the fight would be. After nearly three years out, Márquez announced he would be entering camp in January 2017. Márquez revealed he would have a named opponent and date for his next fight by the end of April 2017. Márquez had been training at the Omanza gym. According to trainer Ignacio Beristáin, Márquez was looking to return in Toluca, Mexico on June 24, 2017. It was then pushed back to August 19. Due to venues not being available for that date, Zanfer Promotions said a date in September or October would be more suitable with the venue being in Monterrey. On August 4, 2017, Márquez announced his retirement from professional boxing after a 21-year career. Márquez spoke to ESPN Deportes TV show Golpe a Golpe, "Today is a special and sad day for me because I'm announcing my retirement. The injuries pushed me to make this decision. It hurts, but I believe the right moment to put an end to my career has arrived. I would have loved to do a final fight to say goodbye inside the ring, but I have to listen to my body, and it was telling me that the right moment to stop boxing is now." He ended his career with a record of 56 wins, 7 losses and 1 draw, with