The Undertaker Names The Six Greatest Opponents He Faced In His Incredible WWE Career

The Undertaker has finally revealed the six wrestling legends that he enjoyed working with the most across his illustrious WWE career.

The 55-year-old wrestling veteran, real name Mark Calaway, has crossed paths with several icons as he now enters into the third decade of his career with WWE.

And 'Taker has currently been the subject of a fantastic new five-part documentary series called Undertaker: The Last Ride.

During Chapter 3: End of an Era, the 'Phenom' looked back on his career and identified six wrestlers who helped him to keep growing in the ring.

One of those included two-time WWE Hall of Famer Bret Hart, who Undertaker said would 'always raise the bar.'

The 'Deadman' explained: "I've been in the ring with some really great guys.

"I had some great matches with some great people. There's a lot of guys obviously on that list. But, if you try to get me to narrow it down [...] [an image of Bret Hart appears on the screen].

"Bret was smooth as silk. Everything that he did [looked] really good.

"He was one of the first guys that I got to expand the character with, and show that I was more than just a gimmick. He always raised the bar."

The Undertaker admitted that he enjoyed working with wrestlers who were smaller and named WWE Hall of Famer Kurt Angle as one of those who fell into that category.

"I enjoyed working with the guys that were smaller," he said of Angle.

"It was easier for me in the sense of storytelling. They were always bigger than life in the size discrepancy."

'Taker, who reportedly inked a long-term deal in 2019, clashed with Batista for the World Heavyweight Championship at WrestleMania 23 in 2007.

And the future Hall of Famer felt their match, which he "really enjoyed," should have been the main event of that WrestleMania.

"My match with Batista. Two big guys that aren't thought of having the match of the night. I really enjoyed that match," he said.

The Undertaker revealed that the legendary Ric Flair was one of his best opponents and specifically asked for the opportunity to work with him at WrestleMania X8.

"I remember it was WrestleMania in Toronto. I didn't have an opponent," he recalled.

"Vince [McMahon] came to me and asked, 'Would you like to work with this guy, who is up and coming, or would you like to work with Flair?' I said, 'I wanna work with Flair!'"

Closing off 'Taker's top six were none other than WWE legends Shawn Michaels and Triple H, who were both part of his four proudest wrestling matches of his career.

"One of the things that I'm proud of is the two matches I had with Shawn, and the two matches I had with Triple H," the 'Deadman' said.

"It's very seldom that you get to tell a four-year story. I look back at everything as far as 'Mania -- those four matches are going to be right up there as some of the best things that we ever did."

During the third episode of the documentary, 'Taker finally opened up about his true feelings towards the disappointing WrestleMania clash with John Cena.