Rising NSW Waratahs centre Henry O'Donnell is serving an 18-month suspension for violating anti-doping rules, the club revealed on Saturday.

Rugby Australia has revealed Henry O’Donnell has been serving an 18-month suspension after testing positive to two prohibited substances found in ADHD medication.

Rugby Australia has revealed Henry O’Donnell has been serving an 18-month suspension after testing positive to two prohibited substances found in ADHD medication.