Titmus doesn't need to wait until Tokyo to challenge Ledecky

It's unlikely Ariarne Titmus would have How Soon is Now, the 1984 track by The Smiths, on her Spotify playlist. But for the rising superstar of world swimming, that's a question worth posing as she continues to thunder her way towards next year's Olympic Games.

After another superb swim, this time the 400m freestyle at the Australian Swimming Championships, the talk has once again been about whether the 18-year-old can challenge American idol Katie Ledecky in Tokyo.

Why wait? Perhaps the more pressing question is not whether Titmus can beat her in Japan but whether she can beat her in Korea in July when the pair meet at the FINA World Championships. It's not as far fetches as it sounds.

In Adelaide, at a non-selection meet in the middle of a high training load, Titmus swam essentially by herself to touch the wall at 3min 59.66s, the same time as her silver medal behind Ledecky at last year's Pan Pacs meet in Tokyo.