Asafa Powell, the Jamaican 100m world record co-holder with doping-tainted Justin Gatlin, said on Thursday his times come without drugs but accepts that speed will always bring suspicion.
"From start I know people were going to say that about me - because I said that about everybody who ran fast when I was younger, so I expected that," Powell admitted.
Questions immediately arose about the credibility of Powell's world record of 9.77 seconds, especially after American Gatlin, the Olympic champion, admitted on July 29 that he tested positive for testosterone at an April meet.
Powell's agent, Paul Doyle, even came out in defence of Powell a day after Gatlin's confession and pledged his athlete's integrity.
"I am Jamaican born, grew up in the church and there is nothing unfair about me," Powell said.
"I am just trying to keep it that way," said Powell, who has already run eight sub-10 seconds this season.
Gatlin faces a possible lifetime ban after a prior doping positive and his world record-matching run could be stricken from the books.
Meanwhile, Powell and fellow MVP athletes rescheduled their European departure from Friday and might now travel Saturday or Sunday to Golden League meets.
Their late departure ahead of the fourth IAAF Golden League meeting in Zurich on August 18 was due to the terrorist threats in London.