Grigorieva retires

Grigorieva, 31, told New Idea magazine she was quitting to pursue her business and charity interests.

Grigorieva was born in Russia but migrated to Australia in 1997 and leapt into the spotlight when she won a silver medal at the Sydney 2000 Olympics the same night Cathy Freeman won the 400 metres.

Grigorieva also won a bronze medal at the 1999 world championships in Seville, Spain and gold at the 2002 Commonwealth Games in Manchester.

She won a silver medal at the 2006 Commonwealth Games in Melbourne in her last international appearance.