"I have just been jogging, lifting, drinking a lot of water and looking at Michael's picture all day for this fight," said Stephenson, former Indiana Pacers guard.
Stephenson also expressed a highly aggressive strategy ahead of the cage match.
"I am going to Mike Tyson you... bite you right in the ear!"
said Stephenson.
The fight itself saw Beasley land a sharp left hand at range using his height advantage before Stephenson executed a body lock takedown and locked in the decisive chokehold.
Following the official decision, Beasley reflected on the reality of experiencing a submission hold inside the cage.
"Practicing getting choked and getting choked ain't the same!" said Beasley.
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The card also featured a main event undercard match between Johnny Manziel and Bob Menery, alongside various other celebrity boxing and MMA bouts.