Superathlete Mary Kate Callahan [ABC7 Chicago]

Mary Kate Callahan, the #4 parathlete in the world, just completed her first marathon and is now training for an Ironman this year. She hopes to be on the 2020 Tokyo paralympic team as well. She is a patient of Dr. Gregory Nicholson, Midwest Orthopaedics at Rush shoulder physician who helps to keep her all-important shoulders healthy.