Aussie sisters set to savor their duel in the pool

Cate and Bronte Campbell are quite the sister act.

The Australian swimmers are both leading medal contenders heading into the Rio Olympics, though they quickly point out this isn't one of those sibling rivalries from the Serena versus Venus Williams mold, the kind that stirs mixed emotions when they inevitably face each other for the same prize.

"It's very different than Venus and Serena because we're not playing against each other on the tennis court," Bronte Campbell said on Tuesday.