Many things have changed in the professional wrestling industry since The Undertaker's WWE heyday, but the biggest thorn in his side is what he sees as the lack of kayfabe in modern wrestling.

The Undertaker has reflected on his WWE retirement and discussed if his character could have had a year-long farewell tour ...

However, the Royal Rumble has proven to be a testing event for Undertaker over the years. The Demon of Death Valley has won the Royal Rumble once in 2007, and he converted that into a World ...