LAS VEGAS -- At UFC 329, King Green delivered a powerful lesson to Terrance McKinney: don't fight your friends. In a highly anticipated main card opener, Green secured a thrilling first-round knockout, fueled by personal animosity towards McKinney.

The two fighters, once friends, saw their relationship sour when Green felt McKinney repeatedly agreed to fight him without genuine intent. McKinney maintained that the allure of fighting on a Conor McGregor undercard was too enticing to pass up. In response, Green promised to deliver a painful outcome, and he certainly followed through.

The bout began with McKinney, the younger and ostensibly stronger fighter, aggressively targeting Green. He seemed on the verge of dominating the round, controlling Green on the ground and nearly achieving a TKO. However, McKinney's reputation for short bursts of energy became his downfall as he quickly exhausted himself, allowing Green to regain his footing.

Green capitalized on this, employing effective body kicks that further drained McKinney. He culminated the round with a devastating left body hook that sent McKinney to the canvas. The referee stopped the bout with just one second remaining, as McKinney failed to defend himself adequately.

In the aftermath, Green reiterated the reason for their rift, emphasizing his desire for all Black fighters to succeed together without facing each other. He expressed a wish to return to the octagon in September for a rumored card in Los Angeles. At 38 years old, Green is experiencing a career resurgence, now on a four-fight winning streak, with three victories coming by stoppage.