Reigning world champion Pauline Ferrand-Prévot will miss the cyclocross season this winter due to an injury picked up in training.
She tweeted saying that she'd fractured her tibial plateau, which meant farewell to her chances of defending her title.
"Knee injury: fracture of the tibial plateau. Farewell to my cyclo-cross season".
Her Rabo-Liv team tweeted to confirm that she would be inactive for six weeks.
The team went on to wish her well in her recovery.
The rider was, for a time this year, world champion on the road, in cyclocross and in cross country mountain biking.
She was unable to defend her road title, which was taken by Lizzie Armitstead, and now looks unlikely to be in the running for victory at the 'cross worlds.
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Recovery will be her key aim as she looks beyond the cyclocross season to the 2016 road racing calendar.
Next season will see launch of the Women's WorldTour, and the young French rider will be among the top picks to do well in the headline races.
Rabo-Liv will also have Marianne Vos back in their squad after her 2015 season was abadoned due to a string of injury woes. The Dutch team will be even more competitive when back up to full strength.
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