With seconds remaining, Lebedev landed four fierce lefts with Jones on the ropes, where he had been for much of the bout. Jones bowed, shook his head, and took one last right hook from Lebedev, who had been on the attack all night.
It is the third straight loss for the 42-year-old Jones, who was once the best pound-for-pound fighter in the world. There was no title at stake.