Cyclist Rob Hayles cleared to compete after follow-up blood test (AP) Rob Hayles was cleared to return to competitive cycling Friday after an irregular blood test forced him to sit out the recent world track championships. The former world champion was sidelined from the event in Manchester when a blood test showed a haematocrit level to be just over 50 percent, which can indicate the presence of the banned blood-booster EPO. Publish Date: Fri, 11 Apr 2008 11:15:29 PDT Read more...