The UFC 239 preliminary card on ESPN kicked off with a bang. Bantamweight prospect Song Yadong made a statement to the rest of the 135-pound division with a big first-round knockout win over Alejandro Perez.

Yadong caught Perez coming inside with a big right hand that dropped him down to the canvas. After a few follow-up shots on the ground, the referee stepped in after having seen enough.

Check out the spectacular finish here:

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What did you think about Yadong’s big knockout win over Perez at UFC 239?