Originally written on Pro Boxing Fans  |  Last updated 10/1/14

MANCHESTER, ENGLAND - NOVEMBER 12: George Groves and Kenny Anderson clash as they go head to head ahead of their Commonwealth Super-Middleweight fight during the official weigh-in at The Lowry Theatre on November 12, 2010 in Manchester, England. (Photo by Alex Livesey/Getty Images)
An unbeaten California favorite and one of England's top young stars will face stern tests on SHOWTIME EXTREME this Saturday, July 28 as the network presents Hugo "The Boss" Centeno vs. Ayi Bruce and George Groves vs. Francisco Sierra in separate eight round preliminary fights that will lead into the highly anticipated Robert "The Ghost" Guerrero vs. Selcuk "Mini Tyson" Aydin world title showdown at HP Pavilion in San Jose, Calif. Guerrero vs. Aydin, is a 12-round fight for the vacant WBC Interim Welterweight World Championship. The SHOWTIME Championship Boxing telecast will air live at 10:00 p.m. ET/PT with Shawn Porter facing Alfonso Gomez for the NABO Welterweight title in the co-featured fight and preliminary bouts to air live on SHOWTIME EXTREME® at 8:00 p.m. ET/PT. Unbeaten junior middleweight Hugo "The Boss" Centeno (14-0, 8 KO's) will travel up the California coast from his home in Oxnard to introduce Bay Area fight fans to one of the sport's most exciting youn...
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