5 Youngest Superstars on the WWE main roster in 2021

#3. WWE Superstar Humberto Carrillo (25)

Humberto Carrillo made his debut on Raw in October 2019

Humberto Carrillo climbed the ladder to the main roster rather quickly. He officially signed with WWE in October 2018, despite being featured a month earlier on NXT. The Mexican wrestler competed on both NXT and 205 Live for nearly a year before making his main roster debut.

the best team mate i could ever ask for, thanks @reymysterio for making this night special.. it’s not a dream.. it’s the reality! And at the end..the good ones always win. #RAW pic.twitter.com/K17lZFnJrd

— Humberto Carrillo (@humberto_wwe) March 3, 2020

On October 21, Carrillo debuted on Raw, a day after his 24th birthday. The now 25-year-old superstar feuded with Andrade, Angel Garza, Seth Rollins, and Murphy. He earned himself a couple of United States Championship matches, all of which he lost. Despite receiving a considerable push during his first few months on RAW, his prominence on the show quickly faded away.

Carillo has not wrestled on Raw since last October. However, he regularly competes on WWE Main Event and participated in a Dark Battle Royal at Survivor Series.

wow @humberto_wwe #WWEMainEvent pic.twitter.com/CyIb8KA4Qc

— HWAN🇰🇷 (@botch205) February 26, 2021

Just like Sonya Deville and Liv Morgan, Humberto Carillo has never won a championship in WWE. He challenged AJ Styles and Andrade (three times) for the United States Championship but lost all four of his title matches.