3 WWE Superstars who could challenge Rey Mysterio for the United States Championship 

#1 Drew McIntyre

Drew McIntyre needs to be in the title picture

Drew McIntyre, one of the top heels of the Red Brand, could be a great choice to be Rey Mysterio's next opponent. 'The Scottish Psychopath' was part of the Fatal 4-Way match on RAW this week, which was inevitably won by Rey Mysterio. There is a notable size difference between McIntyre and Mysterio, but Mysterio has a proven track record against big men.

McIntyre is having a decent run this year, but is yet to win a singles title on the main roster since making his return last year. He destroyed two-thirds of The Shield before meeting Roman Reigns at WrestleMania 35. McIntyre recently returned to the squared circle after a hiatus, and there could be no better option for him than getting a United States Championship opportunity.

McIntyre and Mysterio are no strangers. During McIntyre's first run in WWE, they locked horns a couple of times, but it will be different now, considering how 'The Scottish Psychopath' has rebuilt himself. If this does indeed happen, McIntyre may have found a golden opportunity to wear the United States Championship once again.