'It’s a big concern because it’s clear that people are abusing the drug'
Russian is a loner on women’s tour but her meticulous professionalism makes drugs lapse all the more shocking
Sharapova has been dropped by numerous sponsors
This brand dump is a strange move for Nike, considering the sportswear giant let Gatlin off the hook and stood by Armstrong, Woods, Michael Vick and even Oscar Pistorius during ‘troubled times’
Russian Tennis Federation president Shamil Tarpishchev says he expects Sharapova to compete at Rio 2016 despite failing a drug test
Sharapova and watchmaker's Tag Heuer were in talks to extend their contract but negotiations have been called off with immediate effect
Sharapova is far from the first tennis player to become embroiled in a drug scandal after she tested positive for meldonium
Maria Sharapova's failed drug test has left the sporting world in a state of limbo as critics attack the Russian tennis player while friends support her for her 'mistake'
Sharapova accepts "full responsiblilty" for testing positive for the banned substance at the Australian Open in January
Sharapova revealed she failed a drug test at the Australian Open and will be provisionally banned by the ITF
Sharapova has taken meldonium since the age of 16 to treat her ill health, but it was outlawed at the start of this year
Sharapova tested positive for Meldonium in January this year and will be provisionally suspended from 12 March
Serena Williams beat Maria Sharapova 6-4, 6-1
The Russian has since lost 17 times in succession when facing the younger Williams sister.
Maria Sharapova beat Lauren Davis 6-1, 6-7, 6-0