Olympic and anti-doping officials defended themselves on Tuesday after fresh allegations over Chinese swimmers testing positive for banned substances but being cleared. The case of 23 Chinese swimmers who tested positive in 2021 but were cleared on grounds of contaminated food dominated the build-up to the Paris Olympics. A New York Times story about another two Chinese swimmers this time testing positive for metandienone has led the World Anti-Doping Agency and International Olympic Committee to further defend the decisions to not impose bans. “The athletes were all immediately provisionally …