Australia's Jordan Thompson called the ban handed to his U.S. Open-winning doubles partner Max Purcell a "joke", questioning what he said was a lack of consistency in punishments for doping violations.

Australian doubles star Max Purcell has voluntarily accepted a provisional suspension after admitting to a breach of doping rules in a medical clinic blunder.

Australian tennis star Jordan Thompson has slammed the doping ban of US Open-winning doubles partner Max Purcell.