#1 Samoa Joe
Is there any bigger opponent left for John Cena in WWE than Samoa Joe.
Samoa Joe is one of the best pro-wrestlers in the world. He and Cena share the same path to success with a slight difference, the companies they signed.
While WWE signed John Cena, TNA signed Samoa Joe which led both of them to stardom. Both of them are now in WWE.
WWE tried to book a rivalry between the two, however, the feud was cut short when Joe unfortunately suffered an injury. While Cena has pinned Joe in a 5-on-5 Traditional Survivor Series, the two never had a singles match.
The fans know that these two will tear the house down if booked in a feud. The idea of this match sounds like promotional gold for the WWE!
The WWE could attempt to book a rivalry between Cena and Joe, only this time with the WWE Championship on the line.
Joe is currently in a feud with AJ Styles for the WWE Championship. Speaking of which, Joe might win the WWE Championship at SummerSlam.
Perhaps a feud between Cena and Joe over the WWE Championship could be on the cards in the near future.