Petitclerc set a new world record in Melbourne last month

The Canadian wheelchair racer, who won five gold medals at the Athens Games in 2004, has been advised by doctors not to travel following a recent illness.

Petitclerc was due to race in the 200m and 800m events after winning two golds in the event last year.

The Paralympic World Cup, which runs from 1-7 May, will feature over 350 world-class athletes from 41 countries.