Maria Sharapova has been given a two-year suspension by the International Tennis Federation - effective from January 26, 2016 - for committing an anti-doping violation.
The five-time grand slam champion tested positive for prohibited substance meldonium.
Here, Press Association Sport looks at six other tennis stars who were given doping bans.
Marin Cilic
The Croatian was hit with a nine-month ban in 2013 after traces of a banned stimulant were found in a sample at a tournament in Munich. Cilic claimed the failed test was a result of taking over-the-counter glucose tablets. He took his case to the Court of Arbitration for Sport (CAS) and the ban was reduced to four months. Cilic won the US Open the following year.
Mariano Puerta
The Argentinian reached the French Open final in 2005, where he lost to Rafael Nadal, but after the match his career lay in tatters after he was banned for eight years after a failed test. He forfeited his ranking points and £300,000 in prize money, although he remains in the record books. The ban was subsequently reduced to two years. Puerta had previously served a nine-month doping ban.
Viktor Troicki
Troicki refused to take a blood test at a tournament in Monte Carlo in 2013, claiming he was feeling unwell and had a phobia of needles. He was banned for 18 months, reduced to 12 on appeal to CAS. The Serbian maintained his innocence, claiming he had been told by the doping control officer he could take the test the following day. Novak Djokovic spoke out in defence of his countryman.
Richard Gasquet
The current world number 10 tested positive for cocaine in 2009 and was provisionally banned for 12 months. The Frenchman also took his case to CAS and successfully argued that he had ingested the substance inadvertently after kissing a woman in a nightclub. He was subsequently cleared of any wrongdoing.
Martina Hingis
Hingis returned to competition two years after retiring only for her comeback to be halted in 2007 by a positive test for a metabolite of cocaine at Wimbledon. The five-time grand slam winner was suspended from tennis for two years but made another comeback in 2013 and is now ranked number one in the world in doubles.
Wayne Odesnik
The American pleaded guilty to importing human growth hormone into Australia and was suspended for two years, later reduced to one. Odesnik was then banned for a record 15 years in March last year after a second offence, this time testing positive for a number of banned substances including steroids. Andy Murray reacted to the news by tweeting "Bye bye Wayne. Good riddance."
Source: PA
