#1 Heidenreich
After a short-lived mid-card run in 2003-04, Heidenreich got into a feud with WWE veteran The Undertaker on WWE SmackDown. Managed by Paul Heyman, Heidenreich's gimmick was that of a psychopath. He interfered in the WWE title match between JBL and The Undertaker at No Mercy 2004. Heidenreich met The Undertaker at Survivor Series and lost the match to The Deadman. The rivalry continued further, with The Undertaker coming out on top when all was said and done. At Royal Rumble 2005, The Undertaker defeated Heidenreich in a Casket match. The original plans for WrestleMania 21 were for The Undertaker to team up with Kane to take on Heidenreich and Gene Snitsky, but the plans were dropped in favor of The Undertaker vs Randy Orton.
Heidenreich soon turned heel and aligned with Road Warrior Animal. The duo challenged MNM for the WWE Tag Team titles at The Great American Bash, ultimately winning the belts. Heidenreich and Animal lost the belts back to MNM in October. Heidenreich was released from WWE in early 2006.
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