American sprinter Gabrielle Thomas's provisional suspension for allegedly failing to make herself available for anti-doping tests has been lifted, the Athletics Integrity Unit (AIU) said on Friday.

Thomas, twice a 200 metres winner at the Lausanne Diamond League, had been banned in May by the AIU for allegedly missing three tests in a 12-month period, a violation of anti-doping rules.

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But according to the AIU's Twitter account, Thomas provided new evidence in June and as a result one of the missed tests cannot be established and so no anti-doping rule violation has been committed.

When the suspension was announced, Thomas said in a statement made available to Reuters that one of the missed tests was not valid and that she expected to be cleared of charges.

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"Phone tracking data and multiple witnesses will conclusively show that I was at the exact location I established in my whereabouts and that the doping control officer simply failed to locate me and failed to follow proper protocol," Thomas said in the statement.