#2 WrestleMania 23
Planned match affected: John Cena vs Triple H
Triple H's WrestleMania program was altered once more, several years earlier at WrestleMania 23.
Triple H had lost to John Cena in the main event of WrestleMania 22, with the plan being that Cena would lie down for Triple H the following year at WrestleMania 23.
Seems logical. However, in January 2007, the bout had to be cancelled, when Triple H tore his quadriceps muscle in a tag team bout with Shawn Michaels versus Edge and Randy Orton at the New Year's Revolution pay-per-view show.
The planned rematch was canned and Triple H's D-X buddy, Michaels, was inserted in his place.
In truth, this bout was an upgrade. Michaels went on an absolute tear as a singles star after "The Game's" injury and was runner-up in a classic Royal Rumble match, fighting and defeating the younger Edge and Orton to earn the bout with Cena in a series of rewarding bouts.
Their WrestleMania clash was something of a minor classic and their feud subtly escalated until Michaels unfortunately went down with an injury over the summer which truncated his program with Cena.
Triple H and Cena finally met one on one again, where "The Game" evened the score at Night of Champions 2008.