Undisputed WWE Champion Cody Rhodes has a completely new challenge in front of him. The American Nightmare is all set to get in the ring with a star he has never faced before.Last night at NXT Deadline, Oba Femi defeated Rick Saints to win back the NXT Championship. He had lost the title to the former AEW star earlier this year at NXT No Mercy. With the win over Saints, the Nigerian star also booked his spot in a Champion vs. Champion Match against Cody Rhodes at the upcoming edition of Saturday Night's Main Event.After the championship win, Oba Femi delivered an intense backstage promo. After reflecting on his win over Ricky Saints, the 27-year-old stated that he was coming for Rhodes after this. Femi issued a chilling warning to the more experienced main roster star ahead of their upcoming bout."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," he said. You can check out the X/Twitter post below: Cody Rhodes attacked a former WWE Champion on SmackDownAlthough he is all set to compete against NXT Champion Oba Femi at Saturday Night's Main Event, Cody Rhodes continues to feud with Drew McIntyre on Friday Night SmackDown.The most recent edition of the blue brand kicked off with Nick Aldis telling The Scottish Warrior to go away as he was still suspended. As soon as McIntyre got back into his vehicle, Rhodes sneaked inside from the other side to launch a surprise attack.The security pulled The American Nightmare out of the car, allowing The Scotsman to drive off. Rhodes then marched his way to the squared circle to cut a promo, demanding the SmackDown General Manager reinstate McIntyre so he could get his hands on the former two-time WWE Champion. WWE @WWELINKWHAT THE?! Cody Rhodes just ATTACKED Drew McIntyre! 😱The two stars are likely to compete for the Undisputed WWE Championship once again. It will be interesting to see if Drew McIntyre can finally take the title off Cody Rhodes after several failed attempts.If you use any quotes from this article, please credit WWE with an H/T to Sportskeeda Wrestling for the transcription.