Czech Barbora Zahlavova Strycova has been found to have committed an Anti-Doping Rule Violation and has been suspended for six months, the ITF announced.

The 26-year-old player provided a sample  in October at the Luxembourg tournament that was found to contain the banned substance sibutramine, which is a stimulant. Zahlavova Strycova said that the substance had got into her system through her ingestion of the supplement ACAI Berry Thin, but denied any intent to enhance her performance as a result of ingesting the weight-loss product.

Sibutramine is said to be structurally related to amphetamines.  ACAI Berry Thin has been banned as an over the counter product in many countries, including the United States.

Zahlavova Strycova’s six-month suspension is  backdated to October 16 2012 and will end on April 15, 2013.