Friday, January 20 — at Las Vegas, NV (Showtime) WBA super bantamweight title: Rico Ramos vs. Guillermo Rigondeaux   Saturday, January 21 — at Philadelphia, PA (Versus) Sergei Liakhovich vs. Eddie Chambers   Saturday, February 4 — at San Antonio, TX (HBO) WBC middleweight title: Julio Cesar Chavez Jr. vs Marco Antonio Rubio Nonito Donaire vs. Wilfredo Vazquez Jr. Vanes Martirosyan vs. TBA   Saturday, February 4 — at Frankfurt, Germany IBF cruiserweight title: Yoan Pablo Hernandez vs. Steve Cunningham   Friday, February 10 — at Uncasville, CT (ESPN2) Demetrius Andrade vs. Derek Ennis   Saturday, February 11 — at Las Vegas, NV (Showtime) Andre Berto vs. Victor Ortiz Gary Russell Jr. vs. TBA Erislandy Lara vs. Ronald Hearns   Saturday, February 11 — at Houston, TX (HBO) Jose Luis Castillo vs. Jose Miguel Cotto   Friday, February 17 — at Santa Ynez, CA (Showtime) Thomas Dulorme vs. Jose Reynoso   Saturday, February 18 — at Munich, Germany WBC heavyweight title: Vitali Klitschko vs. Dereck Chisora   Saturday, February 18 — at Corpus Christi, TX (Showtime) Paul Williams vs. Nobuhiro Ishida IBF light heavyweight title: Tavoris Cloud vs. Gabriel Campillo Chris Arreola vs. TBA   Saturday, February 18 — at Durango, Mexico WBO bantamweight title: Jorge Arce vs. TBA   Saturday, February 25 — at St. Louis, MO (HBO) Marcos Maidana vs. Devon Alexander WBO super featherweight title: Adrien Broner vs. Eloy Perez   Saturday, March 3 — at Düsseldorf, Germany WBA/IBF/WBO heavyweight title: Wladimir Klitschko vs. Jean Marc Mormeck   Saturday, March 3 — at Los Angeles, CA (HBO) Yuriorkis Gamboa vs. Rocky Juarez   Saturday, March 10 – at San Juan, Puerto Rico WBO featherweight title: Orlando Salido vs. Juan Manuel Lopez Mikey Garcia vs. TBA   Saturday, March 17 — at New York, NY (HBO) Sergio Martinez vs. Matthew Macklin Andy Lee vs. TBA   Saturday, March 24 — at Houston, TX (HBO) WBC light welterweight title: Erik Morales vs. Danny Garcia James Kirkland vs. Carlos Molina   Saturday, April 14 — at Copenhagen, Denmark WBO super middleweight title: Robert Stieglitz vs. Mikkel Kessler   Saturday, April 21 — at TBA WBC light middleweight title: Saul Alvarez vs. TBA   Saturday, May 5 — at Las Vegas, NV WBC welterweight title: Floyd Mayweather Jr. vs. TBA