Derval O’Rourke: I almost started to hate the sport because of doping by rivals

hen Derval O’Rourke looks back on her career, she can still pinpoint the moments, the medals, the memories, stolen from her grasp.
By the time she hung up her spikes in 2014, O’Rourke had amassed five major championship medals, but she left with a bitter taste, one left lingering by a sport poisoned with doping.