#1 Shawn Michaels
Shawn Michaels is undeniably the best choice to retire the Undertaker, as he is number one in this list. The Undertaker retired Shawn Michales nine years ago at Wrestlemania 26, and it was a streak vs career match. However, he broke his retirement and returned to the squared circle at Crown Jewel where the DX took on the Brothers of Destruction.
Shawn Michaels has an enormous legacy, and he is considered one of the greatest wrestlers in history. He won 'Match of the Year' award several times in his career, and he gave countless awe-inspiring matches. He won the Intercontinental title thrice, European title once, tag team titles six times and the WWE title four times. He also won two consecutive Royal Rumble matches. As a matter of fact, Michaels was the first Grand Slam champion in the WWE history.
Shawn Michaels and Undertaker met the first time in 1997, and it was a Hell in a Cell match. Michaels won the Hell in a Cell match. Subsequently, Michaels also beat Undertaker in a casket match. However, the rivalry became intense when the two legendary superstars faced each other at WrestleMania. Undertaker defeated Shawn Michaels in two consecutive WrestleMania matches.
The Undertaker retired Michales in the past. Therefore, Michaels can get his vengeance after defeating Undertaker in his final match.