This is how I think the Rock/Cena match will end:
The Rock will layeth the smackdown for the people's elbow. As he charges up and approaches Cena to drop the elbow, Cena trips him and locks the STFU.
The Rock tries his level best to make it to the ropes to no avail, ultimately tapping out inches away from the ropes.
I'd hate to see The Rock tap out to Cena, but I feel it's going to happen just so that Cena gets a dominant win.