LONDON (Web Desk) – The United Nations has suspended Tennis star Maria Sharapova as a goodwill ambassador after admitting she tested positive for the banned substance meldonium at this year’s Australian Open.

The UN Development Programme (UNDP), which Sharapova became a goodwill ambassador of in February 2007, suspended the Russian until the outcome of the investigation into her case is known.

Sharapova’s work with the UN focused mainly on helping survivors of the 1986 Chernobyl disaster.