She was expected to announce her retirement, but instead Maria Sharapova revealed even more shocking news in a Los Angeles press conference - she had tested positive for the banned substance meldonium, which she said she had been taking for ten years for a health condition, but which had been added to the banned list at the start of 2016.

In the latest Tennis Podcast, you can hear Sharapova's statement in full, and presenters David Law and Catherine Whitaker discuss the implications for Sharapova and the sport.

Also, with Andy Murray finally subduing Kei Nishikori after 4 hours and 54 minutes, and Novak Djokovic coming back from two sets to one down in Belgrade, the pair could be on a collision course in the Davis Cup quarterfinals in July.

Is Murray's decision to prioritise the Davis Cup a sign that the media has been under-appreciating the completion all along? And will Djokovic put his hand up for the quarterfinals in this jam-packed Olympic year?

Finally, the Tennis...

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