Olympic silver medallist Roger Black said he feels "a fool" after American sprinter Antonio Pettigrew, who pipped him to the 1991 world title, became the latest high-profile athlete linked to drug-taking.

Olympic silver medallist Roger Black said he feels "a fool" after American sprinter Antonio Pettigrew.

Olympic silver medallist Roger Black said he feels "a fool" after American sprinter Antonio Pettigrew, who pipped him to the 1991 world title, became the latest high-profile athlete linked to drug-taking.