The exodus from CMLL to AAA also meant that CMLL lost control of the Mexican National Middleweight Championship as then-reigning champion Octagón was among the wrestlers that left the promotion. The Mexico City Boxing and Wrestling Commission allowed AAA to take control of the Mexican National Middleweight Championship at that point in time. On August 12, 2010, CMLL returned the NWA World Middleweight Championship to the NWA, but immediately replaced it with the NWA World Historic Middleweight Championship to keep two "world" level championships in the middleweight division.