The International Tennis Federation said an independent anti-doping tribunal found that Hingis, who announced her retirement Nov. 1 on the day she revealed the positive test, had committed an offense.
The 27-year-old Hingis denied using cocaine, but the tribunal rejected suggestions there were any doubts over her sample.
Although the five-time Grand Slam winner is now retired, Hingis' suspension is backdated to Oct. 1. She has three weeks to contest the ruling and punishment.
The ITF disqualified Hingis' results from last year's Wimbledon and any subsequent tournaments she played in. She also forfeits any ranking points gained and $129,481 in prize money.
There was no immediate reaction from Hingis, who dominated women's tennis between 1997-2000 by winning three straight Australian Opens, Wimbledon and the U.S. Open. She was twice a runner-up at the French Open where her loss to Iva Majoli in 1997 stopped her winning all four Grand Slams that year.
Hingis returned to the sport in 2005 after a four-year absence because of injuries.
When announcing her retirement at a news conference in Zurich, Hingis denied ever using cocaine.
"I find this accusation so horrendous, so monstrous that I've decided to confront it head on by talking to the press," she said. "I am frustrated and angry. I believe that I am absolutely 100 percent innocent."
So that's why she became thin as compared before her first retirement.
