FILE - A Chinese flag is unfurled on the podium of a swimming event final at the 2020 Summer Olympics, on July 29, 2021, in Tokyo, Japan. An Australian newspaper said Saturday, April 20, 2024, 23 Chinese swimmers were cleared to compete at the Tokyo Olympics despite testing positive to doping because world governing bodies agreed with Chinese authorities and ruled that the tests had been contaminated.(AP Photo/Charlie Riedel, File)