SAN ANTONIO (February 3, 2012) – Undefeated World Middleweight Champion and the Son of the Legend, JULIO CÉSAR CHÁVEZ, JR. (44-0-1, 31 KOs), of Culiacan, México, Top-Five pound-for-pound superstar and three-division world champion NONITO “The Filipino Flash” DONAIRE (27-1, 18 KOs), a native of General Santos City, Philippines, now living in the Bay Area of San Leandro, Calif., No. 1 middleweight contender MARCO ANTONIO RUBIO (53-5-1, 47 KOs), of Torreon, México, and former junior featherweight champion WILFREDO VAZQUEZ JR. (21-1-1, 18 KOs), of Bayamon, Puerto Rico , will step on the scale for their Official Weigh-In, Today!  Friday, February 3, on the Stadium Field Level of the Alamodome. The main event fighters will step on the scale, beginning at 2:00 p.m. CT.

Media parking will be available in Parking Lot A located on the South side of the Alamodome. Media should enter through the loading dock tunnel, also located on the South side of the Alamodome, onto the playing field. All the participants will be available for one-on-on interviews.

The Chávez Jr. vs. Rubio middleweight title fight and the Donaire vs. Vazquez Jr. WBO junior featherweight championship, which will take place Tomorrow!  Saturday, February 4, at the Alamodome. Both fights will be televised live on HBO World Championship Boxing®, beginning at 10 p.m. ET / 7 p.m. PT.

Promoted by Top Rank, in association with Zanfer Promotions, All Star Boxing and Tecate, remaining tickets to the Chávez Jr. / Donaire world championship doubleheader, priced at $200, $100, $60, $40 and $25, can be purchased at the Alamodome box office, all Ticketmaster outlets, online at www.ticketmaster.com and via Ticketmaster charge-by-phone lines at (800) 745-3000.