One of the best players ever won the gold medal again.
Johnson was finished with a knee to the head in their first encounter, but this time it would be Mighty Mouse who finished the fight with a right hand that brought Moraes down, followed by a flush knee to his face.
Check out below to see the reaction on social media to the amazing ending.
Demetrius Johnson looks to avenge his loss to Adriano Moraes
Shaheen Al Shatti
Demetrius Johnson wins by knockout in the fourth round
“Alcohol enthusiast. Twitter ninja. Tv lover. Falls down a lot. Hipster-friendly coffee geek.”