Doctor Elena Dorofeyeva has been banned for four-years after being found to have given Kateryna Kozlova a banned substance ©Getty Images

Ukrainian doctor Elena Dorofeyeva has been suspended for a period of four-years after having been found to have administered a banned substance to tennis player Kateryna Kozlova.

The 22-year-old Ukrainian, who is currently ranked 98 in the world, received a sixth month suspension last May having tested positive for the banned stimulant dimethylbutylamine at the 2015 Dubai Duty Free Tennis Championships.

An International Tennis Federation (ITF) panel accepted her claim that the substance had entered her body through her ingestion provided to her by a doctor.

They therefore gave a reduced sentence.

Due to her ban being backdated, Kozlova was ineligible to compete from February 16 to August 15 in 2015.

Her doctor Dorofeyeva has now been banned, having been deemed to have administered dimethylbutylamine to Kozlova in November 2014.

Dorofeyeva contested the charges by claiming that she “did not fall within the definition of player support personnel and so was not bound by the programme” and that “the deadline under the programme for a preliminary hearing lapsed”.

Kateryna Kozlova had been given a reduced six-month suspension last year
Kateryna Kozlova had been given a reduced six-month suspension last year ©Getty Images

Her third motion against the charge saw the Ukrainian claim that her “right to a fair trial had been compromised”.

According to an ITF Independent Tribunal, Dorofeyeva failed to attend a hearing on June 10 and rejected her assertions, ruling that she fell within the category of player support personnel and had administered the substance.

Dorofeyeva has now been deemed ineligible for a four-years, with her period of suspension due to last from May 1, 2015, to April 31 in 2020.