“…Concerning their management of both sporting and anti-doping commitments, athletes are affected by actors at different levels: from coaches to representatives of national and international federations. In several studies, athlete support personnel have been found to influence athletes' decision-making and doping behaviour (Donovan et al, 2002;Jalleh et al, 2014;Huybers & Mazanov, 2012) Furthermore, it has been suggested that support personnel often lack knowledge about, or fail to pay sufficient attention to, the rules regulating doping in sports, something that has been emphasized as a risk for the athletes whom they advise and support (see, e.g., Backhouse & McKenna, 2011;Dikic, McNamee, Günter, Samardzic Markovic, & Vajgic, 2013;Engelberg & Moston, 2015;Mazanov, Backhouse, Connor, Hemphill, & Quirk, 2014).…”