World Anti-Doping Agency chiefs have ruled out immediate changes to out of competition drugs testing for athletes.
The agency's director general David Howman saays he will continue talking with concerned athletes groups about the rules requiring notification of their daily whereabouts and availability for random anti-doping tests.
But president John Fahey says the changes that harmonising the rules came into force only at the beginning of this year and appear less onerous than what was practiced in many sports before then.
Several high-profile sportsmen, including British tennis star Andy Murray, have attacked the 'whereabouts' rule which requires athletes to notify drug testers of their movements as an invasion of privacy.
But Howman suggests tennis players should get used to informing anti-doping authorities of their whereabouts as a matter of course while they make travel arrangements between tournaments.
