Williams could now decide to call time on his career
British heavyweight champion Danny Williams's future is in doubt after he was stopped by Poland's Albert Sosnowski at York Hall in London.
Sosnowski was a late substitute and not expected to trouble Williams, but he knocked his opponent down in the eighth round and the fight was then stopped.
Williams had been due to defend his title against John McDermott, who had to withdraw because of a rib injury.
The 35-year-old Williams refused to give interviews after the fight.
Sosnowski, who is based in Brentford, competed well with Williams from the off and it was clear the 'Brixton Bomber' was in for a tough night.
The intensity of the contest increased in round four with Williams landing jabs on a few occasions but Sosnowski's belief did not waver.
Williams, who beat Mike Tyson in 2004, appeared to be struggling to stay with the pace of the 10-round contest and it was Sosnowski making the running.
It got worse for Williams in the eighth round as he was dumped on the canvas by the left hand of Sosnowski, staggering to his feet just in time to beat the referee's count.
But it was only a temporary reprieve for the 35-year-old as the contest was stopped moments later.