The former bantamweight titleholder three-pieced and slept Michael Larrimore with a left hook-right-left combination for a stunning first-round knockout which only took 21 seconds Friday night in the main event of BKFC 69 from Gas South Arena in Duluth, Georgia, and live on DAZN.

After delivering the scintillating finish, Richardson (5-1) let bare-knuckle fighting fans know that he's aiming to snatch back the bantamweight championship. 

"I am back, baby!" Richardson said live on DAZN. "If you forgot who I was, don't forget. I'm coming back in that bantamweight division — once and future king."

He added: "You're damn right I should be next for [a title shot]. I want my belt back. It's coming back to me."

Richardson's speed immediately gave Larrimore (2-1) trouble. As he gave chase in the Squared Circle, he pinned Larrimore against the ropes before unleashing the definitive combo that knocked Larrimore out on his feet, folding him backwards.

The electric KO marked a resounding end to the BKFC 69 main card, which started with Justin Watson recording a one-punch, two-second KO of Cole Ferrell for the quickest knockout in combat sports history.

Here's how the entire BKFC 69 main card went.