Gatlin to plead 'exceptional circumstances' against drug charges

Justin Gatlin plans to plead "exceptional circumstances" in a bid to beat the drug case against him.

The world and Olympic 100 metres champion faces a lifetime ban after testing positive for testosterone which constituted his second doping violation.

The joint world record holder was banned after an amphetamine was found in his system in 2001 but the suspension was overturned when it was accepted it had originated in medication for attention deficit disorder.