Mauricio Ruffy may have just taken the lead for the Knockout of the Year with his jaw-dropping finish over King Green ... off ...

Ruffy and Green were going after one another in the ... It appeared the lightweight was going to be hard to stop, and he would eventually face off against James Llontop at UFC 309.

If he cannot finish King Green, he’s going to be in some trouble. Green is going to be in his face and he’s going to be talking to him. Green has very good boxing and he’s very slick overall ...