This past Saturday in the main card opener at UFC 313, we saw a big time lightweight prospect face his toughest challenger to date. The exciting Mauricio Ruffy (12-1) was looking to move to 3-0 inside the octagon as he took on King Green (32-17-1).

Mauricio Ruffy opened the UFC 313 main card with a Knockout of the Year contender against King Green. Ruffy (12-1 MMA, 3-0 UFC) added to the octagon success of The Fighting Nerds when he uncorked a vicious spinning wheel kick that flatlined Green (32-17-1 MMA,

Mauricio Ruffy may have locked up Knockout of the Year just two minutes into the UFC 313 main card. Ruffy scored a highlight-reel spinning kick to the head of King Green, sending him down and out to kick off Saturday's pay-per-view from T-Mobile Arena in Las Vegas.

All things considered, King Green is handling his last loss well. Longtime UFC lightweight Green tried to bounce back from a submission loss to Paddy Pimblett in his return at UFC 313 over the weekend.