The Dunedin cyclist Alison Shanks won't be defending her individual pursuit world title in Belarus next month, with a hip injury forcing her to withdraw from the world track champs.
She'll also miss this week's national track champs in Invercargill.
Shanks has been carrying the injury over the past year but says treatment and medication meant she could still compete in the London Olympics.
However she says she always anticipated needing time away from the sport to get the injury treated before looking ahead to the new track season in October and on to next year's Glasgow Commonwealth Games.
She a decision on whether she will have surgery will be made in the next couple of weeks but she expects to be back in full training by June.