Rumour: Triple H vs The Undertaker in WrestleMania 27?

Today Wrestling Observer released this rumour, which is already being discussed widely and broadly says:
-The Undertaker will be who return the 22111 (the night after Elimination Chamber)
-The Undertaker is not 100% health, but could take a match "Mania"

*Potential rivals:
- vs Wade Barrett doesn't sound enough solid
-Sting is not already signed with WWE
-Brock Lesnar has no permission to participate in WM27
-For Triple H, it could be the strongest fight WWE could offer, as it would be retirement vs streak, with Shawn Michaels as special referee
-Shawn already would not fight, and we would possibly a retirement of HHH.

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