It appears that the Antonio Cervantes Ivan Valle fought 4/30/4 on Telefutura is Antonio "Bazooka" Cervantes Garcia.
http://www.fightnews.com/goldenboy16.htm
He was announced at the fight as having a 19-2-5 record prior to the fight, although the dodge-arena site listed him as being 26-2-5.
http://www.dodgearena.com/events/boxing-james.html
And in this fightnews archive, he is described as having beaten Gerardo Zayas in 2/2001.
http://boxing-news.com/boxeo/arc2-2001.html