Emma Raducanu, Alex de Minaur, Thanasi Kokkinakis and Andrey Rublev say they live in fear of a contaminated supplement, as in the case of the former world No 1.
Simon Cambers is a freelance tennis writer at various esteemed publications. He specializes in covering competitive sports, particularly tennis, with a focus on major events like Wimbledon and the Australian Open, as well as insights into sports figures and the sports business. Simon's work has been featured in notable outlets including ESPN, The Guardian, and the Boston Globe.