Middleweight World Championship Series Middleweight World Championship Series The Middleweight World Championship Series was a boxing round-robin tournament staged by Don King Productions. The goal of the series was to produce a unified Middleweight boxing champion. The victor took the WBC, WBA, IBF and vacant Ring Magazine 160-pound belts home, and became the first undisputed middleweight king since Marvellous Marvin Hagler held the distinction from 1979 until 1987. The victor was also awarded a specially commissioned "Sugar" Ray Robinson trophy. The contenders in the tournament were William Joppy(WBA champion), Keith Holmes(WBC champion), Bernard Hopkins(IBF champion), and Félix Trinidad. The semifinals pitted Trinidad against Joppy
IWA Undisputed World Heavyweight Championship from both companies and Rodríguez's expulsion from the event. After the event's conclusion police officers were deployed and the IWA retained physical possession of the championship. Following this the belt was returned to WWC personnel following an ultimatum, which claimed that the company would take legal action if it wasn't returned within forty-eight hours. However, both the International Wrestling Association and the National Wrestling Alliance recognized the unification match, and considered Lozada the first Undisputed World Heavyweight Champion in Puerto Rico. Beginning in 2009, the IWA Undisputed World Unified Heavyweight Championship began becoming involved in several inter-promotional "champion vs. champion"