Norfolk triathlete Kimberley Morrison returns to the scene of her maiden professional triumph this weekend.

A year ago the 29-year-old became the first woman to finish Ironman 70.3 Buenos Aires in Argentina, completing the course in four hours, 20 minutes and 43 seconds.

And now she's back and determined to retain her title on Sunday.

'!I have recently come home from 10 days training in Fuerteventura,' she said. 'The numbers are looking good, I am really excited to get racing.'

Morrison, from Bale, near Fakenham, was born with two holes in her heart and has previously raised thousands of pounds for Great Ormond Street Hospital, where she received regular care during the early years of her life. Morrison has trained hard through the winter with the Argentina race in mind.