How long did The Undertaker wrestle in WWE?

The Undertaker is one of the biggest names in WWE history. His incredible undefeated streak at WrestleMania is probably the most iconic record of all time.

The Undertaker: The Phenom, the Tombstone and an Enduring Legacy — The Sporting Blog

Dead Man Rising: The Making of the Undertaker - The Ringer

John Cena had to console The Undertaker daughter after WWE match

How old is The Undertaker, what is the WWE star's real name and will he fight at WrestleMania 35?

Every Undertaker Wrestlemania Match Ranked

Glenn Jacobs teams with The Undertaker as Kane — but not in WWE ring

Ask 411 Wrestling: How Long has the Undertaker's WWE Career Really Been?

Undertaker's 1 deadMan Show: WWE legend will stop in Indianapolis

The Undertaker Birthday

The Undertaker - Online World of Wrestling

Roman Reigns Beats Undertaker at WWE WrestleMania as Deadman Appears to Retire, News, Scores, Highlights, Stats, and Rumors

Pro wrestling legend the Undertaker seems to be finally undertaking retirement after WrestleMania 33 – New York Daily News

The Undertaker Suffered a Huge Personal Loss Before His Last Match in WWE - EssentiallySports

The Undertaker: WWE star Mark Calaway talks 'humbling' 30-year career

WrestleMania 30: Brock Lesnar ends The Undertaker's win streak