Former British and Commonwealth heavyweight champion Danny Williams has finally admitted his career in the ring is over.

Known as the 'Brixton Bomber', the enigmatic Williams shocked Mike Tyson in 2004 before taking on Vitali Klitschko in what proved a mismatch for the WBC title.

He continued to fight at domestic level, beating and then losing to both Matt Skelton and Audley Harrison, after which he career went into terminal decline.

He lost in the first round of Prizefighter to the unknown Carl Baker in 2009, afterwards admitting he was 'shot' and that he would retire.

Williams was still in possession of the British title though and he defended it for a final time the following year, being knocked out in the second round by Dereck Chisora.

But he was back earlier this year, fighting in Germany on Latvian licence, admitting he was unable to walk away from the sport.

He fought five times in 2011 alone, the end coming after last week's defeat to Leif Larsen of Sweden, when - tipping the scales at over 20st - Williams was put down three times in the second round.

The 38-year-old told boxrec.com that he has finally accepted this is the end.

"Look I have got no aspirations. I know I can't win any titles. I just love fighting. Last weekend basically showed that my punch resistance has totally gone - I have no punch resistance," he said.

Williams retires with a record of 44 wins with 11 losses.