| ZURICH, SWITZERLAND (TICKER) -- Martina Hingis underwent surgery Sunday to repair two torn ligaments in her right ankle and will be sidelined approximately six weeks, the WTA Tour announced.
The Swiss star will lose her 73-week hold on the No. 1 world ranking to Jennifer Capriati on Monday and will not end the year as the top-ranked player, an honor she has earned three of the last four years.
Hingis suffered the injury Saturday after just 20 minutes of her semifinal encounter with Lindsay Davenport at the Porsche Tennis Grand Prix in Filderstadt, Germany. She will remain hospitalized for three days, according to her official web site.
Hingis had an MRI on Saturday and was advised to undergo surgery by Dr. Heinz Buhlmann. That prompted her withdrawal from this week's $1.19 million Swisscom Challenge in Zurich, where she won the title a year ago.
Hingis also will not defend her title at the $3 million Tour Championships, which begin October 29 in Munich, Germany.
The 21-year-old collected this year's adidas International, Qatar Open and Dubai Open crowns to increase her career haul to 38 WTA titles.
However, Hingis still has not won a Grand Slam event since January 1999, when she captured the Australian Open for the third straight year. | 