Next month's Survivor Series PPV will mark The Undertaker's 30th anniversary in WWE.
It's incredible to think The Deadman has been in the pro-wrestling industry for so long, especially considering he spent so many years at the very top.
There's not a man more respected backstage than Mark Calaway.
During his full-time run, he was often the judge of Wrestlers' Court and the person that his colleagues looked up to.
You'd be hard-pressed to find a modern-day superstar that doesn't idolise The Undertaker. So just imagine how strange it would be for them to see him and interact with him backstage.
That's an experience Seth Rollins has recently discussed and despite being one of the top stars in WWE, even he still finds The Deadman 'terrifying'.
Speaking to The Bump, Rollins opened up about his interactions with The Undertaker:
"They've always been super awkward, mostly because he’s terrifying.
"I don’t know if any of you have sat with him, he’s just a normal Southern boy, but he’s still The Undertaker.
"To me, I’m not going to be that kid who dressed up as The Undertaker when I was four-years-old.
"To be able to have conversations with him, to be able to be in the ring with him, work with him, learn from him, is incredible.
"Anytime you get 30 years in one industry, you know, you’re a master classman. Yeah, I wish I had fun experiences with 'Taker, but I’ve always been afraid of him."
The Undertaker's aura is well documented, but it's still quite incredible to hear that even a top star like Rollins has always been afraid of him.
That really does speak levels about Calaway's reputation in this business.