3 Possible challengers for AJ Styles after Humberto Carrillo 

#2 Aleister Black

Aleister Black

Aleister Black is in the dire situation of needing to find a formidable opponent, and currently there is no better option than United States Champion AJ Styles. With a title shot, Black could take his first step toward ascending to the top of WWE's competitive ladder. A meaningful feud between Styles and Black would be exciting for WWE fans, considering their dexterity in the ring and outstanding mic skills. With Black's hard-hitting striking ability and Styles' high-flying maneuvers, their matches would most definitely be worth watching.

'The Dutch Destroyer' was promoted to the main roster earlier this year, but began his journey as a singles Superstar after WrestleMania 35, when he was drafted to SmackDown. Black's character went through significant development on the Blue Brand and he had a rivalry with Cesaro. After arriving on RAW a few weeks ago, Black is waiting for someone to knock on his door.

It will be interesting to see if AJ Styles knocks on Aleister Black's door on RAW. While Black's dark persona could be intimidating for any Superstar, Styles has Luke Gallows and Karl Anderson, and they have been invincible since The OC reunited. Black is still undefeated since moving up from NXT, and is capable of taking the title away from Styles and winning his very first main roster championship.