Maria Sharapova's case to be heard by anti-doping panel in London

Maria Sharapova faces an anti-doping panel today as she waits to discover if she will face a lengthy ban after testing positive in January.

The 29-year-old stunned the tennis world in March when she announced at a press conference that she had failed a test for meldonium on January 26, the day she lost an Australian Open quarter-final to Serena Williams.