• US Open doubles champion admits exceeding limit for an IV infusion
• 27-year-old says he has developed a nervous tic because of the case

Grand slam doubles champion Max Purcell has accepted an 18-month ban for breaching anti-doping rules, with the Australian saying he has developed a nervous tic and anxiety because of the case.

The 27-year-old entered a voluntary provisional suspension in December after admitting to breaching Article 2.2 of the Tennis Anti-Doping Program “relating to the use of a prohibited method”.