#2 Buddy Murphy
Buddy Murphy trying to attack Roman Reigns could be surprising for many fans, but we cannot count Murphy out. He's one of the most talented guys on the blue brand, but he hasn't been used yet. Entering into a feud with Reigns would be a huge promotion for Buddy Murphy.
Murphy moved to SmackDown a couple of months ago, but he was seen on TV only once. The last time he appeared was during Shane McMahon's town hall meeting, in which he did not support Kevin Owens and said that he would slap Owens if he names him again. However, he has been used in dark match segments prior to the show in recent weeks against Ali.
According to many fans, Murphy was spotted backstage just after the attack on Roman Reigns. One thing to note is that it was the same T-Shirt Murphy wore a few weeks ago on TV, so there's a high possibility that Murphy is the one behind the attack on Reigns.
Although it is unknown when we will get to see the former Cruiserweight Champion on TV, a feud with Roman Reigns would do wonders for him. With Eric Bischoff gradually taking over SmackDown, we can expect new talent to get more chances.
The Australian wrestler facing The Big Dog would be a fresh thing for fans to watch. If the segment is booked well, the feud can go a long way.