Reliable sources directly involved with the situation have informed Boxingtalk.com that the eagerly anticipated battle for lightweight supremacy between WBO champion Diego Corrales and WBC champion Jose Luis Castillo, which is scheduled to headline on Showtime Championship Boxing March 5, may be in serious jeopardy. Corrales co-promoters Arthur Pelullo (Banner Promotions) and Gary Shaw (GSP) are at serious odds over the way Corrales-Castillo was negotiated, the terms of the bout, and most importantly, the cooperative handling of Corrales' next two fights. For Corrales' sake we hope the two promoters are able to resolve this matter shortly, if not, expect legal action to follow. Boxingtalk.com can guarantee you that no contract has been signed by Corrales as this goes to print. We will continue to keep you updated, until then, Remember Where You Heard It First! (2:00 AM ET)