Czech tennis player Markéta Vondroušová has been suspended from competition after refusing to submit to a drug test in December. The International Tennis Integrity Agency (ITIA) and an independent tribunal rejected her explanations for the refusal. Vondroušová, 26, maintains her innocence, stating she has never doped. The length of the suspension has not been disclosed, effectively pausing her professional career. This decision follows a formal process initiated by the ITIA regarding anti-doping violations. The case highlights the strict regulations surrounding athlete testing and the consequences of non-compliance.