Floyd Mayweather is 45 years old. Maybe he'll do it when he's 75.
He defeated undefeated Hall of Famer Mikuru Asakura in the second round of a three-round exhibition at Super Reigns in Saitama, Japan.
The 30-year-old Japanese mixed martial artist was athletic and had moments, some eye-catching punches. However, no MMA fighter has the boxing skills to compete on par with one of the great masters of the sweet science, who is in his mid-40s.
And this is by design. Mayweather says he doesn't want to trade punches with anyone who has a good chance of hurting him. Asakura couldn't.
The first round was uneventful as both fighters regularly threw their dominant hands to gain range and only hit the upper body here and there.
But in the second round, he picked up the pace. Mayweather, still fast, still efficient, began landing with a right hand over Asakura's head and added more body shots.
Asakura had trouble hitting the great defensive fighter, but he took a few punches that caused Mayweather's head to fall back, a rare sight. His problem is that he's getting the worst of the exchanges.
Finally, after landing several accurate shots to the head, Mayweather landed another right that landed Asakura on his back.
He got down on his knees, referee Kenny Bayless took a good look at him and decided he was not in a position to continue.
Can this version of Mayweather beat a top welterweight contender? Maybe not this time. However, he continues to dominate the fighters he fought at exhibitions, YouTube, MMA fighters and passive boxers.
In fact, Japanese MMA star Asakura had no chance.
Mayweather collected another big payday and later thanked the Japanese crowd for fun.
"I'm glad we were able to make people happy tonight," he said. "Thanks for finding me. I'll be back."
Who is the question?
Perhaps not coincidentally, Mayweather's rival Manny Pacquiao was invited by the event's organizers to speak in the ring before and after the main event.
Are they planning a Mayweather-Pacquiao exhibition? Maybe 43-year-old Pacquiao has hinted.
"Hopefully, this isn't the last time you'll see me," he said.
Yes, we will definitely see a lot of famous boxers.