THREE TO WATCH

MACK HORTON (400m free)

He’s recovered from the Popeye-arm he was sporting after a bee sting and will energise his whole week with success in the 400m tonight.

ARIARNE TITMUS (200m, 400m, 800m freestyle)

17-year-old faces toughest of three individual races tonight.

RELAY HEAVEN

Aussies revel in these rare chances to swim as a team