At SummerSlam 1997, Undertaker's long reign finally ended when he lost the title to Bret Hart when special guest referee Shawn Michaels accidentally struck Undertaker with a steel chair, which was intended for Hart. After losing the WWF Championship to The Undertaker at WrestleMania, Sycho Sid's push began to diminish and after King of the Ring he began to disappear from WWF programming. In actuality, Sid quietly left WWF to focus on recovering from a neck injury. Sid eventually returned to rival promotion World Championship Wrestling (WCW) in 1999 and continued to wrestle as Sid Vicious until he suffered a near career-ending leg injury at WCW Sin on January 14 2001. Results Other on-screen personnel References External links The Official Website of WrestleMania 13 WrestleMania Professional wrestling in the Chicago metropolitan area 1997 in Illinois Events in Rosemont, Illinois 1997 WWF pay-per-view events March 1997 events in the United States