When the AWA folded in 1991 with Larry Zbyszko as their final champion, one of the last major world titles was gone. Meanwhile, the NWA became less prevalent during the Monday night television ratings war that engrossed the WWF and WCW during the 1990s. ECW shut down in 2001 with Rhino as their last champion, seemingly leaving the group of prominent world championships down to two, and with WCW's subsequent fall and purchase by the WWF during the same year, the World Wrestling Federation Championship remained.