Australia's swimming golden girl Ariarne Titmus has won her 200m freestyle semi final and will face off with American great Katie Ledecky for the gold medal at the Tokyo Olympics.
The 20-year-old will now swim for her second gold medal in the finals after sensationally pipping Ledecky in a gripping 400m freestyle final on Monday to nab her first gold of the global sporting event.
Titmus hung just behind Hong Kong's Siobhan Bernadette Haughey, who placed second, for the majority of the race but brought it home in the final 50m.
In the second round of semis on Tuesday morning Ledecky also took out the win and fellow Australian Madison Wilson came fourth but just managed to scrape through into the finals based on her time.