Seems Youna has not recovered quickly enough from the knee injury suffered on Bars in Albertville.
… A year ago, Youna Dufournet was en route to London, the world championships and a bronze medal on vault. Today, the worlds seem far to the gymnast …. Not sufficiently recovered from her left knee surgery, she had to withdraw from the selection test, held Saturday evening at Insep …
Google Translate – La Nouvelle Republique

