Dr William Roberts, MD, MS, FACSM, is a Professor in the Department of Family Medicine and Community Health at the University of Minnesota Medical School and Program Director at University of Minnesota St Johns Family Medicine Residency in St Paul, MN. His special medical interests are in sports medicine and he has a sub-specialty certificate in Sports Medicine, is a Fellow, Past President, and Past Foundation President of the American College of Sports Medicine; a charter member of the American Medical Society of Sports Medicine; a founding member and past President of the American Road Race Medical Society (transitioning to the International Institute of Race Medicine); Editor in Chief for Current Sports Medicine Reports; an Editorial Board Member of Medicine and Science in Sports and Exercise, British Journal of Sports Medicine, and Clinical Journal of Sport Medicine; the Medical Director for the Twin Cities Marathon; the Chair of the Sports Medicine Advisory Committee for the Minnesota State High School League; and a member of the USA Soccer Cup Tournament Sports Medicine Advisory Committee. His research is in ice hockey and marathon related illness and injury. He has authored many research and educational publications in sports medicine, and has presented nationally and internationally on sports medicine topics.