The Undertaker then accepted Michaels' rematch offer, after initially declining, at WrestleMania XXVI in a Streak vs. Career match, where Undertaker was victorious and Shawn Michaels was forced to retire. This match also made both The Undertaker and Michaels the first men in WWE history to main event WrestleMania in three different decades (Undertaker main evented WrestleMania 13 and XXIV in 1997 and 2008 and Michaels main evented WrestleMania XII and XIV in 1996 and 1998 and XX and 23 in 2004 and 2007 respectively). After a hiatus (which included wrestling two matches on "Raw"), he returned to "SmackDown" on May 28, defeating Rey Mysterio to qualify for a spot at the Fatal 4-Way pay-per-view to compete for the World Heavyweight title. During the match, The Undertaker suffered a concussion, broken orbital bone and broken nose; he was visibly bleeding profusely on camera by the end of the match. To cover for the injury, Kane revealed that Undertaker had been found in a vegetative state; Mysterio took his place in the match and won the World Heavyweight Championship. While attempting to learn which wrestler had attacked The Undertaker, Kane defeated Mysterio to win the World Heavyweight Championship. Kane and Mysterio continued to clash as they accused one another of being the assailant behind the attack.