Mikaela Shiffrin says she is dealing with post-traumatic stress disorder following a crash in November and will not defend her gold medal in giant slalom at the Alpine skiing world championships.

Mikaela Shiffrin said she will still race the slalom and team combined at worlds but said she's "not there yet" with giant slalom.

The Olympic champion skier will not defend her title in the women's giant slalom at Worlds After Mikaela Shiffrin’s crash in November, she has decided not to compete in the women’s giant slalom (GS) in the World Alpine Skiing Championships,

Mikaela Shiffrin pulls out of World Championships giant slalom due to ‘PTSD’ from nasty crash - The American will miss the defence of her world title as she deals with the lingering impacts of a nasty

American Mikaela Shiffrin will not take part in the giant slalom event at the world championships in Austria, saying on Monday that she is not yet mentally ready after her recent return from injury but will now compete in the team combined competition.