The head of the U.S. Anti-Doping Agency told senators that Chinese swimmers would have had to ingest around 11 pounds, or five kilograms of food to test for the amounts of the performance enhancer that resulted in the much-debated positive drug tests from 2021 that were later disregarded.

Defense attorneys for a woman charged with killing her Boston police officer boyfriend are ramping up efforts to show that she was framed.

A cap designed for Black swimmers’ natural hair that was banned from the Tokyo Olympics has been approved for competitive races.