WCB: OLEG MASKAEV VS. SAMUEL PETER AND JUAN DIAZ VS. NATE CAMPBELL

Two title-holders put their belts on the line when WORLD CHAMPIONSHIP BOXING: OLEG MASKAEV VS. SAMUEL PETER AND JUAN DIAZ VS. NATE CAMPBELL is seen live from Plaza de Toros in Cancun, Mexico SATURDAY, MARCH 8 (9:30 PM ET/6:30 PM PT), exclusively on HBO. The HBO Sports team will be ringside for the event, which will be available in HDTV, as well as closed-captioned for the hearing-impaired and presented in Spanish on HBO Latino.

Other HBO play date: March 9 (9:00 AM)

HBO2 play dates: March 9 (4:30 PM) and 11 (midnight)

Oleg Maskaev (34-5, 26 KOs) vaulted back into the heavyweight title picture when he defeated Hasim Rahman to capture a title belt in August 2006. Originally from Kazakhstan, the battle-tested veteran will confront the highly regarded Samuel Peter (29-1, 22 KOs) of Nigeria, whose only loss was to the formidable Wladimir Klitschko. The bout is scheduled for 12 rounds.

In the 12-round opening bout, lightweight champ Juan Diaz (33-0, 17 KOs) of Houston puts his crown on the line against contender Nate Campbell (31-5-1, 25 KOs) of Tampa, Fla. Diaz looked terrific in defeating Acelino Freitas and Julio Diaz, and hopes to keep the momentum going against this crafty challenger.

All WORLD CHAMPIONSHIP BOXING events are broadcast in HDTV. HBO viewers must have access to the HBO HDTV channel to watch HBO programming in high definition.