Reigning Olympic and world figure skating champion Kim Yuna‘s preparations for Sochi suffered a setback.
The South Korean will need “around six weeks” to recover after a metatarsal injury to her right foot from training, according to Reuters. South Korea’s Yonhap News reported “up to six weeks,” and Agence France-Presse reported “at least six weeks.”
Kim, who has been in pain since mid-August, withdrew from both of her Grand Prix events this fall, Skate Canada (Oct. 25-27) and Trophee Bombard in Paris (Nov. 15-17), according to Yonhap News.
“If she continues to train hard, her injury could worsen,” a Korea Skating Union official told Yonhap News. “She has to slow down and must receive further treatment. She may need further rehab after her treatment.”
Kim, 23, is attempting to become the first singles figure skater since Katarina Witt (1984 and 1988) to win back-to-back Olympic titles. She has said she plans to retire after the Sochi Olympics.
She returned to major competition this past season after more than 18 months off and dominated the field en route to her second World Championship.
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Olympic triathlon champion Gwen Jorgensen is pregnant and will not compete this year.
“Just kind of take this year a little bit easier,” Jorgensen said in a video posted on Facebook on Thursday.
The baby is due Aug. 3, according to Jorgensen’s social media.
Jorgensen, 30, became the first U.S. Olympic triathlon champion in Rio after going in as the heavy favorite. She has said for months that she planned to take time off to have a baby before returning to defend her Olympic title at Tokyo 2020.
Swiss Nicola Spirig, the 2012 Olympic gold medalist and 2016 silver medalist, is reportedly expecting a child in May.
In Jorgensen and Spirig’s absences, the top triathletes going into the season are defending world champion Flora Duffy of Bermuda, U.S. Olympians Katie Zaferes and Sarah True and Britons Vicky Holland and Helen Jenkins.
Jorgensen’s last competition was the New York City Marathon on Nov. 6, when she finished 14th in her first running race longer than 10 miles.
The World Triathlon Series kicks off in Abu Dhabi the first weekend of March.
MORE: Triathlon federation boss wants Olympic races shortened
The PyeongChang Winter Olympics, the first Winter Games in South Korea, are a little more than one year away.
A number of U.S. stars are establishing themselves in this winter sports season as medal contenders.
NBC Sports takes a look at some of those names to watch, as the U.S. looks to return to the top of the medal standings.
Russia earned the most medals at home in Sochi in 2014 with 33 medals, with the U.S. coming in second with 28. Those standings could change if Russian results are stripped due to its ongoing doping scandal.
The U.S. has never topped the total medal standings at a Winter Olympics outside of North America. It led the way at Lake Placid 1932 and Vancouver 2010.
VIDEO: PyeongChang 2018 Olympic venue tour