I spoke to someone that met Roman Reigns and one of the Usos outside of the Allstate Arena in Rosemont, Illinois after WWE Payback on Sunday night. They told me that Reigns appeared to be in pain and walked out slowly. A fan asked him for a picture and he politely declined.
I haven't spoken with any of my sources backstage at the show but Reigns said on WWE Payback Fallout that he might have a torn triceps. The hope (at least from us) is that Reigns was over-accentuating the physicality of the No Holds Barred Elimination Match and does not have a serious injury.
Thanks to Wrestling News World reader Marvin Rodas for his help.