We are but hours away from Wrestlemania and the biggest night in the history of Sports Entertainment with a card stacked top to toe with exciting matches featuring no less than four part time performers (five if you include Chris Jericho). However no match is bigger or more important to Vince McMahon and his company than the WWE Championship grudge match between current champion The Rock and the current WWE cash cow John Cena. Typically Wrestlemania isn't the most difficult PPV to pick apart and predict who will win what matches but Cena/Rock is one of those rare angles that really could go either way just like last year. According to a report by Wrestling Inc. though the WWE creative team may have spoiled the end already by revealing that Ryback will be Cena's first post-Wrestlemania feud and it will more than likely be for the WWE Championship. You'll remember of course that is was Ryback who Cena eliminated last in this year's Royal Rumble match to win his number 1 contendership to Rock's belt so there are plenty of reasons for a match to take place. Not only does this news potentially spoil the outcome of The Rock Vs John Cena by suggesting Cena/Ryback will be for the WWE Championship but it also connotes that unless WWE plans an all good guy feud between the two babyface's then one man will have to turn heel. Will that man be John Cena? And will the heel turn occur tonight in his match with The Rock? Will this be the new attitude Cena was talking about on RAW? Of course in WWE plans are made and changed more times than we can keep up with but this news certainly throws open some questions as to how Cena will win the WWE Championship if he in fact does go over in tonight's main event. Wrestlemania 29 is live tonight on Sky Box Office at midnight. Will you be watching and do you think a Cena heel turn is inevitable? Don't be shy sound off in the comments section below.