Australian swimming star Stephanie Rice is reportedly set to retire after the 2012 London Olympics.
The 23-year-old has told News Limited she doesn't think she can sustain the commitment required to remain at her peak for another four years.
Rice said she's interested in exploring different career options but wouldn't shut the door completely on a comeback at some stage in the future.
The triple Olympic gold medallist said she is as fit as she was when she achieved success at the 2008 Beijing Games and is focused on exiting the sport on a high.
"I will be 24 (for the London games) and time to move on and make some new changes I think,'' Rice said.