CAS Registers the Urgent Appeal Filed by Dayana Yastremska
Lausanne, 26 January 2021 - The Court of Arbitration for Sport (CAS) has registered the appeal filed
by Ukrainian tennis player Dayana Yastremska against the International Tennis Federation (ITF) in
relation to the decision taken by the ITF Independent Tribunal on 22 January 2021 (the Challenged
Decision), which rejected the application made by Dayana Yastremska to lift her provisional
In her appeal to CAS, Ms Yastremska seeks to have the Challenged Decision set aside and her
provisional suspension lifted in order to be able to participate in the 2021 Australian Open tennis
The CAS arbitration has commenced and the parties have agreed to an expedited procedure in order
to enable a sole arbitrator to issue a final decision by 3 February 2021.
A urine sample provided by Ms Yastremska on 24 November 2020 was found to contain a metabolite
of mesterolone, a banned substance on the WADA Prohibited List. Following the analysis of the
B Sample, which confirmed the finding for the A Sample, Ms Yastremska was provisionally
suspended by the ITF with effect as from 7 January 2021. On 16 January 2021, Ms Yastremska applied
to lift the provisional suspension but the Chair of the ITF Independent Tribunal rejected the application
and maintained the provisional suspension. The grounds for the Challenged Decision were notified to
Ms Yastremska on 24 January 2021.
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