Ruiz announces retirement

Former world heavyweight champion John Ruiz has announced his retirement from the ring after an 18-year professional career that ended in a title defeat to David Haye earlier this month.

The 38-year-old American, nicknamed 'The Quiet Man', will bow out with a pro record of 44 wins - 30 coming by knockout - nine losses, one draw and one no contest and having become the first heavyweight world champion of Hispanic descent.