Who was the only boxer to beat Naseem Hamed?

Marco Antonio Barrera Tapia (born January 17, 1974) is a Mexican former professional boxer who competed from 1989 to 2011. He held multiple world championships in three weight classes, including the World Boxing Organization (WBO) junior featherweight title twice between 1995 and 2001, the Ring magazine and lineal featherweight titles between 2001 and 2003, and the unified World Boxing Council (WBC) and International Boxing Federation (IBF) super featherweight titles between 2004 and 2007.

On April 7, 2001, Barrera handed British boxer Naseem Hamed his first and only loss for the lineal featherweight championship by a twelve-round decision. Before the fight, Hamed was a 3 to 1 betting favorite in Las Vegas. Barrera threw more, harder punches and more impressive combinations than Hamed throughout the course of the fight. Barrera was awarded the victory via a unanimous decision, with the scorecards reading 115–112, 115–112, 116–111 and won the lineal and International Boxing Organization (IBO) featherweight titles.