SYDNEY (Reuters) – The World Anti-Doping Agency will add the painkiller tramadol to the list of banned substances for athletes in competition from 2024 and has maintained its ban on cannabis after a review. The decisions were taken by WADA’s executive committee after a meeting in Sydney on Friday and followed recommendations from the body’s advisory group on the list of banned substances. “Tramadol abuse, with its dose-dependent risks of physical dependence, opiate addiction and overdoses in the general population, is of concern and has led to it being a controlled drug in many countries,” WAD…