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.

Shiffrin missed two months after sustaining a deep puncture wound from a crash at the Killington Cup in November.

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.