The Orthodox stance was used by the last boxer in what weight class to hold the undisputed champion title?
Orthodox stance In combat sports such as boxing, an orthodox stance is one in which the boxer places his left foot farther in front of the right foot, thus having his weaker side closer to the opponent. As it favors the stronger, dominant side—often the right side, see laterality—the orthodox stance is the most common stance in boxing. It is mostly used by right-handed boxers. Many boxing champions—such as Jack Johnson, Anthony Joshua, Marco Antonio Barrera, Rocky Marciano, Ingmar Johansson, Roberto Durán, Floyd Mayweather Jr., Muhammad Ali, Amir Khan, Peter Buckley, Johnny Tapia, Mike Tyson, Larry Holmes, Lennox Lewis, and Wladimir Klitschko —fought in an orthodox stance.
Floyd Mayweather Jr. vs. Ricky Hatton Floyd Mayweather Jr. vs. Ricky Hatton, billed as Undefeated, was a boxing superfight that took place on December 8, 2007, at the MGM Grand Garden Arena in Las Vegas, between reigning WBC & "The Ring" welterweight champion Floyd Mayweather Jr. and reigning "The Ring" light welterweight champion Ricky Hatton.