Banned Russian figure skater Kamila Valieva has blamed her positive doping test on a strawberry dessert prepared by her grandfather on a chopping board he used to crush his pills.

The Court of Arbitration for Sport (CAS) has now published its full report on its verdict, justifying its ban on the athlete, who claimed the food was inadvertently contaminated by her grandfather’s heart medication.

The word “strawberry” featured 43 times in the document detailing why the judges rejected her argument.

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Valieva proposed three possible explanations for the positive test, all of which revolved around a strawberry dessert she claimed her grandfather, Gennaidy Solovyov, gave her the night before she left for St Petersburg.

In submitted evidence, Valieva referenced her grandfather’s heart medication and added: "Probably, this pill got into a dessert, which he usually gives to me.

“Or, I saw a few times accidentally, that he crushed the pills with the knife and dissolves them in a glass, and took them. So I might have drunk from the same glass or there, at home, I might have eaten something from the same chopping board and so on.”

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According to the judgement, WADA submitted it was “inherently implausible” that an athlete at this elite level would take a homemade strawberry dessert with her across Russia and eat it during a competition period.

WADA also questioned the lack of medical evidence relating to Valieva’s grandfather’s heart condition, saying it was “nearly impossible” for him to have had such a condition “without there being any contemporaneous evidence of it”.