Guess who’s back, back again? Court of Arbitration for Sport allows Russia’s Darya Klishina back into Olympic Games

Russian long jumper Darya Klishina will take part in the Olympic Games after the Court of Arbitration for Sport on Monday overturned a last-minute ban.

Klishina, 25, was the only Russian accepted for the Olympic track and field events, but the International Association of Athletics Federations (IAAF) suspended her on Friday after new information on her doping record emerged.

After a day of hearings, the Court of Arbitration for Sport (CAS) announced that Klishina’s appeal had succeeded and she “remained eligible to compete in the Olympic Games in Rio.”

WATCH: golden moments on Day 9 at the Rio Olympics

The decision came just in time for Klishina, a former European indoor champion, to resume her campaign for the women’s long jump competition which starts on Tuesday.

The appeal was the latest fallout from the inquiry by Canadian lawyer Richard McLaren for the World Anti-Doping Agency which accused Russia of mass ‘state-sponsored’ doping.

CAS said it was McLaren who provided the “new factual elements” about Klishina which led the IAAF to revoke her Rio eligibility.

IAAF clears US-based Russian long jumper Darya Klishina for Olympic Games in Rio de Janeiro

The IAAF doping board rejected 67 athletes entered by Russia but accepted Klishina, who is based in Florida, because she lived abroad and had been through regular international doping checks after a cut-off period starting January 1, 2014.

The doping review board told the CAS hearing that “certain of the athlete’s samples has been subject to tampering and manipulation,” according to the tribunal’s statement.

Media reports have said two bottles of Klishina’s urine samples had been tampered with and one of the samples contained two different kinds of DNA.

Traitor: Russian athlete Darya Klishina faces criticism after being allowed to compete at Olympic Games

The CAS panel decided however that despite McLaren’s new information, Klishina “complied with the relevant criteria (to compete at Rio) because of her permanent residence outside Russia.”

It added that Klishina “established that she was subject to fully compliant drug testing in and out of competition outside of Russia” from 2014 onwards.

Klishina had insisted in a statement after the ban was announced that she is “clean”.

Her lawyers have argued that no evidence had been presented, only that McLaren had told the IAAF about the sample bottles which reportedly had scratch marks on them.

Russia names 68-strong athletics team for Rio hoping ban will be lifted

McLaren’s report released in July said the Russian sports ministry and secret service found a way to open tamper-proof bottles to switch samples.

Russia had seized on the new ban on Klishina to reinforce its claim that it is the target of a campaign.

“This decision proves that justice can be fair,” Interfax quoted Russia’s sports minister Vitaly Mutko as saying.

“You cannot punish her for what she didn’t do.”