Deron Williams (blue gloves) reacts defeating Frank Gore (red gloves). Kim Klement-USA TODAY Sports

Deron Williams won his pro boxing debut on Saturday night, and he is going out while he is on top.

The former NBA guard defeated ex-NFL running back Frank Gore in a heavyweight bout on the Jake Paul-Tyron Woodley undercard Saturday. Williams, who eventually won by split decision, turned the fight into an action-packed brawl.

After he was announced as the victor, Williams had a great mic-drop moment in his interview with Ariel Helwani — he declared his retirement.

“I’m going to go sit my old dumb a– down somewhere and let these professionals do their s—,” said Williams.

“Honestly, I probably looked terrible out there,” he added. “I feel like my last five sparring sessions, I was on point. My head wasn’t coming up. As soon as you get out here, you start getting touched, it’s a whole different, all your training goes out the window. It was fun. I’m glad I had a chance to come out here and do it. But like I thought coming into this, I’m one-and-done.”

The 37-year-old Williams, who has MMA experience, was hyping himself up a bit before the fight and appears to have made good on his word.

Williams now finishes his boxing career a perfect 1-0, which is good enough for him. At least he comes away from the ring looking better than his opponent did.

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