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.

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How long has the Undertaker been doing wrestling? - Quora

How long did The Undertaker wrestle in WWE?

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