Michael Phelps has reignited a rivalry between Team USA and Australia ahead of the Paris Olympics, responding to Cate Campbell's 'sore losers' comments after a dispute over medal tallies. Campbell expressed joy in beating America and not hearing the 'Star Spangled Banner' at the world championships. Phelps and US swim stars, like Lily King, found motivation in Campbell's remarks, emphasizing national pride and intense competition in the pool. The playful banter sets the stage for a highly anticipated showdown between the two powerhouse swimming nations in Paris.