#4 Humberto Carrillo
Ever since his arrival on Monday Night RAW, Humberto Carrillo has received a huge push. At Crown Jewel, he eliminated Erick Rowan and Luke Harper to win a shot at AJ Styles' championship.
Although Carrillo was unsuccessful in winning the match, the high-flying star managed to impress the WWE Universe with his resilience.
In the last few weeks, we have seen Carrillo cross paths with the former US Champion several times. In fact, it's his rivalry with AJ Styles that allowed the storyline to improve and give more screen time to the likes of The OC and The Street Profits.
Carrillo could demand for another shot at the United States title as it was he who actually had the shot at the title tonight but ended up losing it after being attacked by his Anderson and Gallows.
A potential match between Mysterio and Carrillo would be a master vs apprentice sort of rivalry as the current US champion is revered by Mexican Superstars, like Carrillo.