The Undertaker didn't hesitate when naming who he believes to be the greatest WWE wrestler of all-time.
'The Deadman', for many years, held a legendary unbeaten streak that stretched all the way to 21 matches, when it was controversially ended by Brock Lesnar at WrestleMania 30.
That streak was just a small part of The Undertaker's legacy as perhaps the greatest to ever perform, with his 'Deadman' and 'American Badass' characters both extremely popular with fans.
He didn't have a particularly lengthy resume in terms of titles won - he was a seven-time world champion in almost 30 years with the company - but it was testament to his work that The Undertaker didn't need to be holding gold to be the most feared wrestler on the roster.
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As a result, when it comes to the WWE GOAT debate, the now 59-year-old is joined by the likes of 'Stone Cold' Steve Austin, The Rock, John Cena and now Roman Reigns as the greatest performer in history.
When asked to name his own GOAT, The Undertaker had another wrestling legend in mind - and his answer won't come as a surprise to many fans.
He told ITN Wrestling: "I think Shawn Michaels probably is the greatest in-ring wrestler of all-time."
Undertaker had two legendary WrestleMania matches with 'The Heartbreak Kid' at WrestleManias 25 and 26.
He won both, with the latter, a 'Career Defining Match', being the last time Michaels would compete in his career - barring a critically panned match in Saudi Arabia several years later.
On those matches, Undertaker - real name Mark Calaway - said: "The match quality, the storyline, this [at Mania 25] is one of the greatest matches that I was part of.
"This match here starts off a four-match series - the two with Shawn where I ended up retiring him next year, and then Triple H comes into the picture to take up from his friend. And it all ends up with Triple H, Shawn Michaels and myself at the top of the stage after four-match series together.
"That was the end of an era and my proudest body of work in WWE."
Prior to his WrestleMania matches with The Undertaker, Michaels was already a guaranteed Hall of Famer - he would be inducted in 2011 - and had five-star matches with the top stars in the company over nearly three decades.
His 'Sweet Chin Music' move is one of the most iconic finishers in WWE history, and his career is often split into two parts as he was forced to retire in 1998 due to a back injury before being cleared to return four years later.
Michaels is still involved in WWE as the Senior Vice President of Talent Development and Creative, and oversees the NXT brand, where he has prepared the likes of current main roster champions Bron Breakker, Tiffany Stratton and Lyra Valkyria for success on the biggest stages.
Topics: The Undertaker, WWE
Ryan Smart