Cody Rhodes is set to face NXT Champion Oba Femi at Saturday Night's Main Event on December 13. However, the next challenger for his WWE Championship has seemingly been revealed.This past week on SmackDown, The American Nightmare attacked Drew McIntyre backstage by breaking into his car. He demanded that SmackDown General Manager Nick Aldis remove McIntyre's suspension, albeit to no avail. Now, according to a report from Bodyslam+, the two are likely set for another title match.While Rhodes has managed to retain the WWE Title in each of their two matches so far, their next clash will likely have major storyline implications for both. However, the specific details are being kept under wraps. There was no mention of whether or not McIntyre will finally be able to claim the WWE Championship in his upcoming match.Fans have been very vocal about their desire to see the Scottish Warrior win the gold after coming up short so many times. It remains to be seen if he can finally dethrone Rhodes after months of pursuing the title.Cody Rhodes' upcoming opponent sent him a strong warningBefore Cody Rhodes can resume his rivalry with Drew McIntyre, he will have to face one of the most dominant NXT Champions of all-time in Oba Femi. The Ruler dethroned Ricky Saints at Deadline to earn a match against the Quarterback of WWE, and sent him a warning after reclaiming the gold:"The biggest factor is change. Change came knocking at the door of Ricky Saints tonight, and it asked for his title. And he had no choice but to relinquish because change always wins. When change met the dinosaurs, he sent the meteor. When change met man in the Old Testament, he sent the flood. And when Change comes to the main roster asking for Cody Rhodes, he will send The Ruler, The Destroyer, The Bringer of War, Oba Femi." It remains to be seen how the champion vs. champion match plays out at Saturday Night's Main Event on December 13 and whether Drew McIntyre will have any involvement in the outcome.