#3 Special guest referee
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Well, this may be the most obvious one - purely because of the history between these three men. If Michaels was interjected into the match, while he could be a competitor, it's much more likely that we see Michaels play an important role in a singles match between Taker and Trips.
So, what better way than to relive one of the most iconic matches, and scenes, in WWE history?
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The last time we saw these guys, it was truly the "end of an era" - so if they're all in the ring again, it would only be fitting to relive it - although maybe without the Hell In A Cell structure around them this time. The match at WrestleMania 28 saw Undertaker go 20-0 in his WrestleMania streak when he pinned Triple H and a reluctant Michaels administered the three count. An emotional reunion may be on the cards.