Shane Mosley, 43, (48-9-1-40KOs) returned to the ring on Saturday after not fighting since November 2013.
The three weight world champion took control of his fight against Ricardo Mayorga, 41, (41-9-1-25KOs) without dominating in a bout that failed to excite.
The decisive moment came when Mosley landed a body shot to Mayorga's less than impressive midriff. The out-of-shape fighter was unable to recover and the match was stopped late on in the sixth round.
Earlier in the fight, Mayorga had taunted and mocked his opponent by shouting at him and dropping his hands in a show of bravado. Actions that proved unsuccessful just three rounds later as he found himself on the floor.
It was the second time the two veteran fighters have faced each other. The first meeting coming almost seven years ago when Mosley stopped the Nicaraguan in the dying seconds of round 12.
What now for Mosley?
The American hall of famer has lost six of his last 10 fights, including losses to Floyd Mayweather and Manny Pacquiao and it is unclear where "Sugar Shane" can go from here.
Now well into his forties and having just played out a relatively dull affair at the Forum in Inglewood, California, there can't be too many options for the man who was named "Fighter of the Year" by the Boxing Writers Association of America in 1998.
It is more likely that this bout may have been a money making fight and not a realistic way for Mosley to nudge his way back into the sport. Promoting the fight himself, it was confusing why one of the Pound-for-Pound best fighters of the last two decades choose to schedule his latest bout the same night as Leo Santa Cruz's featherweight bout against Abner Mares, which was being held at the Staples Center less than 20 miles away.
There is no doubt the talent Mosley has shown over the years and the excitement he has provided for so many boxing fans. But after so many defeats in recent years and at his age, it may be time to call it a day on a glittering career.