BBC Sportshour: What does Maria Sharapova's return mean for tennis?

What kind of message is the return of Maria Sharapova actually sending out not just to the world of tennis but beyond?

Calacus Managing Director David Alexander gives his views on the return of a global sporting icon following her suspension for taking the banned substance Meldonium to the BBC World Service Sportshour show.

The interview starts at 19.00.