Shane Mosley Jr delivered a dramatic stoppage victory over Serhii Bohachuk at Zuffa Boxing 06 in Las Vegas.
Mosley Jr, who was watched by his father, former world champion Shane Mosley Snr, put himself firmly in contention for another major fight at middleweight after he floored and halted his Ukrainian opponent.
Mosley Jr grew into the fight as the rounds progressed, consistently stalling Bohachuk's advances with impressive combination and counter-punching.
A short right hand stiffened the legs of Bohachuk in the sixth round before he was dropped heavily by another big right hand from Mosley.
The American sensed the finish was near and followed up with a flurry of blows with his opponent against the ropes, forcing the referee to stop the contest with 2:38 left in the round.
After a unanimous decision loss to Jesus Ramos in December, the win reignites the career of Mosley Jr, who holds wins over Daniel Jacobs and Gabriel Rosado.
"I want my piece of the Mosley pie to be great and to show that," Mosley Jr. said after the fight.
"I wanted to do this sport for me. I told everybody when I was 15 years old - when I got punched in the nose, I wanted to get back.
"This is the result of that. I get punches in the nose. I get punched in the face. What's up? I'm here."
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