#2 Rey Mysterio
Rey Mysterio has been a part of the wrestling for a long time now. He is counted as one of the industry's veterans. Given the recent happenings with the legends, it can be expected that The Fiend may also think of making Rey Mysterio a victim of the Mandible Claw.
Mysterio, on the other hand, respects his fellow veterans a lot. At the Raw Reunion, we saw him challenging and defeating Sami Zayn, who mocked the legends.
Now, what The Fiend did to Mick Foley and Kurt Angle won't please Mysterio at all. So, if The Fiend attacks him, Mysterio can start a rivalry with Wyatt.
Mysterio is currently helping put over young talents in the company. A feud with The Master Of The 619 and scoring a few wins over the former World Heavyweight Champion can help Wyatt restablish as a top Superstar on the roster.