Dec 12 (Reuters) - The global fight against doping has "stalled", with athletes evading detection systems that are failing to keep pace with increasingly sophisticated cheats, a leading anti-doping official has warned.

Athletics Integrity Unit (AIU) Chair David Howman delivered a stark assessment at last week's World Conference on Doping in Sport, declaring that despite his organisation's proven track record of identifying rule-breakers, they are "not catching enough of them".