Teenage Russian skater Kamila Valieva received a four-year ban from the Court of Arbitration for Sport (CAS) on Monday for failing a doping test prior to the 2022 Winter Olympics.Valieva was found to have “committed an Anti-Doping Rule Violation (ADRV) under Clause 4.1 of the All-Russian Anti-Doping Rules of 24 June 2021,” said the three-member...