Media playback is unsupported on your device
Maria Sharapova failed a drugs test at Australian Open
7 March 2016 Last updated at 23:11 GMT
Former world number one Maria Sharapova has revealed she failed a drugs test at the Australian Open.
The Russian, 28, tested positive for meldonium, a substance she has been taking since 2006 for health issues.
Sharapova, a five-time Grand Slam champion, is provisionally suspended from 12 March pending further action.
