Australian swimmer Cate Campbell (R) speaks as teammate Emma McKeon (L) listens during a press conference ahead of the 2018 Gold Coast Commonwealth Games, on the Gold Coast on April 1, 2018. / AFP

A defiant Cate Campbell has promised a return to her best form at the Commonwealth Games as the Aussie swimmer looks to exorcise the demons of her Olympic flop two years ago. The 25-year-old is blazing the comeback trail after taking a year out from the sport, prompted by what Campbell described as the "greatest choke in Olympic history" in Rio -- her sixth-place finish in the 100 metres freestyle final. Campbell, who is limbering up for the Commonwealth Games in Gold Coast this week, rediscovered her mojo at the national trials, where she dominated the 100m freestyle and broke Australian records in the 50m free and 50m butterfly.