Sept. 15, 2012 // 9 p.m. ET; 6 p.m. PT (HBO PPV)
Thomas & Mack Center, Las Vegas
TBD By Editorial
Courtesy HBO

Enemies' Enmity

Julio Cesar Chavez Jr. and Sergio Martinez are bending over backward to stoke their rivalry before Saturday's showdown. All the better for fight fans. 'Face Off' Video

• In Their Words:  Chavez »   Martinez »