Former Olympic champion Allan Wells claims he has heard damning allegations which link some of the biggest names in athletics to doping.
American Maurice Greene, the two-time Olympic champion, recently denied allegations that he used drugs during his career after being named among 24 athletes by a prosecution witness in the perjury trial of sprint coach Trevor Graham.
Wells, the Scot who won the 100metres gold medal at the 1980 Olympics in Moscow, told The Times: 'In the last few months, I've been told things about certain athletes and you could not get any bigger than these names. These things come to me as an ex-athlete.'
He added: 'I am disillusioned that there is still no effective test for growth hormone. I know a British scientist says he has had a test for years, but it has not been used.
'I don't know if that is down to politics or if there's a hidden agenda, but we need to work together to deal with this.
'We have a long, long way to go before the public feels athletics is clean. There needs to be collective will and I'm not sure there is.'
