Esther Vergeer, who has dominated women's wheelchair tennis over the past decade, has announced her retirement.
The 31-year-old amassed a remarkable 470-match winning run over nine years and won 21 grand slam singles crowns and three Paralympic titles.
International Tennis Federation president Francesco Ricci paid tribute to Vergeer today.
He said: "Esther Vergeer is a tremendous ambassador not only for tennis but also for disability sports. She is an inspiration to many.
"Wheelchair tennis owes her a huge debt of gratitude for her professionalism and her quality as a player.
"Everyone at the ITF wishes her well with her Foundation and we know that anything she chooses to do in the future will be a success.
"While we will certainly miss her, we will have one more chance to honour her as our ITF World Champion, for a record 13th time, at the ITF World Champions Dinner in Paris."