(Reuters) -Australia's two-times Grand Slam doubles champion Max Purcell has accepted an 18-month ban after breaching anti-doping rules, the International Tennis Integrity Agency (ITIA) said on Tuesday.

Purcell admitted to a breach of rules relating to the use of a "prohibited method" after unknowingly receiving an IV infusion of vitamins above the allowed limit of 100 ml in a 12-hour period and entered into a provisional suspension in mid-December.

He said at the time he had told the clinic he was a professional athlete and that the infusion had to be less than 100 ml.