Azaranka refuses from quarter final match of Madrid tournament due to knee injury

A knee injury has not allowed Victoria Azaranka to finish a quarter final match of the doubles tournament in Madrid.
The Belarusian and Alena Vesnina lost two games to a Taiwanese-Indian duet of Chuan Chi Yuan and Sanya Mirza.

Then Azaranka decided to stop the match. It has not been informed whether the Belarusian will continue participating in the singles tournament.