Swimming Australia on Friday sacked a member of its Olympic coaching staff, saying he caused serious reputational damage by supporting a rival South Korean athlete racing against his countrymen. Coach Michael Palfrey caused a stir when he said he hoped Kim Woo-min -- who he coached at one point -- would win the men's 400m freestyle instead of two Australians. Head coach Rohan Taylor said Palfrey's actions were "un-Australian", but the team did not sack him at the time because it would be too disruptive.