NEW YORK – After Gamaliel Diaz shocked the boxing establishment by winning a thrilling, hard-fought, 12-round split decision over then-World Boxing Council (WBC) No. 2 contender Robert “The Ghost’’ Guerrero (Dec. 5, 2005 also on “ShoBox”), he thought he was headed for a showdown with the WBC’s top 126-pound contender, Nicky Cook. [details]