 In 2004, now campaigning at middleweight, Márquez took on the much stronger and then-undefeated Jermain Taylor, who won by TKO after Márquez's corner decided to pull him out in round nine.On June 21, 2008, Márquez defeated Giovanni Lorenzo by unanimous decision in an IBF middleweight title eliminator.The fight took place at the Seminole Hard Rock Hotel and Casino in Hollywood, Florida.