Ross G. White is Associate Professor of Clinical Psychology at the University of Liverpool, UK. He undertakes consultancy work in elite sport environments including providing mental health support to a Premier League Football Club academy and a Pro-14 Rugby Team. Lewis Charnock is a BASES accredited sport scientist (psychology) and Performance Psychologist at Everton Football Club Academy, UK. He has substantial experience working in youth and elite sport settings. Stephen Leckey is Lecturer in Sports Coaching at Ayrshire College, UK, having previously completed a PhD assessing mental toughness in Rugby Union. He is also Director of a sports performance consultancy, Athlete Focused. Victoria Penpraze is Senior Lecturer in Physiology and Sport Science at the University of Glasgow, UK. In a consultancy role she has more than 15 years' experience providing sports science support and research within elite rugby, football and golf. Andrew Bethell is a clinical psychologist. Andrew trained at the University of Liverpool, UK and currently provides mental health support to individual athletes, teams and staff groups across several high performance sport environments in the United Kingdom.