This is going to happen not matter what, and I think the two will put on a great match together. Cena puts on good to great matches, Roman puts on good to great matches. I know some will say "oh its because so and so carried them" No I watched those matches and they put in just a much work as the other guy. Takes two to tango...if anything else the crowd is going to make this an interesting match. But imo for this match to truly work. Roman gonna work as the heel. At Summerslam should become Universal champion with the help of Seth and Dean, Reforming the shield as Heels. They just dominate RAW for months, until Cena comes over and wants to put a stop to them. Roman tells Cena he will retire him like he did Undertaker and set it up for Survivor Series. They probably want to have it at Mania, but I say have it at Survivor series if they want it to continue making it feel special. Last year it was Lesnar/Goldberg, this year have it be Cena/Reigns.