On top of that , Cena was competing under the weight of a stipulation that would have required Cena to jump to SmackDown if he lost .
For that very reason , Cena 's chances of escaping Unforgiven 2006 with Edge 's WWE Championship seemed slim , at best .
On top of that , Cena was competing under the weight of a stipulation that would have required Cena to jump to SmackDown if Cena lost .
For that very reason , Cena 's chances of escaping Unforgiven 2006 with Edge 's WWE Championship seemed slim , at best .