Wrestlemania has given us countless incredible moments over the years. Be it through era-defining feuds like Rock vs Austin and Kurt vs Brock or generation-crossing dream matches like Rock vs Hogan and Cena vs Rock, the Biggest Show In Sports Entertainment continues to provide amazing scenarios, unlikely angles and moments that will stay with us for a lifetime. But what of the moments that never were? While we can all spend hours on end fantasy-booking dream matches through the ages, we know that there was never any chance of getting a CM Punk-Randy Savage match, or an Ultimate Warrior vs Seth Rollins feud. In years gone by, however, there were some potentially colossal, history-making Mania matches that, for whatever reason, never came to be. Be it through the stars not quite aligning, the superstars in question being just out of sync or, often, one party throwing a spanner in the works, it seems like some golden opportunities for those precious Mania Moments have fallen through the cracks in the 31 years Wrestlemania has given us so far. Here are some of the clashes we'd loved to have seen - some rumoured at the time, others rumoured since, and a couple that were never on the table at all. But just imagine if they were....