#1 Dominic

A huge angle leading into RAW tonight is Samoa Joe finding out his next opponent to defend the United States Championship against. Joe won the title last week after Mysterio relinquished it to him due to facing an injury.
Interestingly, Joe attacked Rey Mysterio brutally after the master of the 619 handed him the title, teasing that these two might not be done. But with Mysterio seemingly out of the picture for the time being, who could take his place and step up to the Samoan Submission machine?
One interesting choice would be Mysterio's son, Dominic, who was heavily involved in the feud between him and Joe leading to their match at Money in the Bank. There were rumors of Dominic signing an official deal with WWE, and if that is indeed true, this would be the perfect time to launch him and let him take revenge for his father.
Although I'm not sure whether he's ready to feud for a title already or not, there is a possibility that he might return tonight to confront Joe.
Which other superstars do you think can show up on RAW tonight? Let us know in the comments section below.