Two-time Grand Slam winning doubles player Max Purcell has entered a voluntary provisional suspension under tennis' anti-doping rules. The International Tennis Integrity Agency announced the sanction in a statement on Monday after the 26-year-old Australian admitted to violating Article 2.2 of the Tennis Anti-Doping Program relating to the use of a Prohibited Method. The ITIA said the suspension came into effect on 12 Dec., and time served under provisional suspension will be credited against any future sanction. The length of time of the voluntary suspension was not specified by the ITIA. During the provisional suspension, Purcell is prohibited from playing in, coaching at, or attending any tennis event authorized or sanctioned by the members of the ITIA (ATP, ITF, WTA, Tennis Australia, Fdration Franaise de Tennis, Wimbledon and USTA) or any national association," the ITIA statement read. Purcell, with compatriot Jordan Thompson, won the U.S. Open in September and won Wimbledon w