Ace Indian tennis player Sania Mirza has suffered a knee injury. Stating this on the sidelines of the Indian Sports Honours event in Mumbai, Sania said, she has been off for about a month and would soon take a call on whether a surgery is needed. Sania, however, said she is happy because she still finished the season close to top 10 in the Women's rankings. Sania, the country's finest Women's Doubles player, began the year with the number one ranking.