 He voluntarily took a drug test to ensure the validation of his record, and tested positive for the banned substance stanozolol, an anabolic steroid.He was provisionally suspended on 9 March 2011, and on 26 October 2011, the Australian Sports Anti-Doping Authority (ASADA) announced that it had acknowledged the two-year ban imposed on Ball by Cycling Australia, backdated to the date of the provisional suspension.The ban prevented him from participating in the 2012 London Paralympics.