Olympic gold medallist Giaan Rooney has previewed the enticing matchup in the 200 metre women’s freestyle final between Ariarne Titmus and Mollie O’Callaghan.

Rooney told Mark Levy on Wide World of Sports “it is going to be absolutely incredible” to watch.

“We know that they’re both in form, we know that they’re both swimming well,” Rooney said.

Press PLAY to hear her full preview including who she’s picking to win

Image: Chris Hyde/Getty