Under qualification rules, a player must be nominated three times in an Olympic cycle in order to be eligible for the Games in Rio in August. The world's richest sportswoman has been named in the four-woman Russian squad for the World Group clash in Moscow despite insisting that she is unable to play due to a forearm injury suffered in her Australian Open quarter-final loss to Serena Williams.

PARIS, FRIDAY: Maria Sharapova attempts to remain on course for the Rio Olympics when Russia take on the Netherlands in the Fed Cup this weekend even if she courts controversy by not actually playing.