Heather MacLean celebrates after finishing third in the 100 metre freestyle event at the Canadian Olympic Swimming Trials in Montreal, Saturday, March 31, 2012. Olympic swimmers and sisters Heather and Brittany MacLean were each other's strongest supports during their competitive careers. The Toronto siblings continue to lean on each other in tough times. Heather is an obstetrics nurse at Mount Sinai where the COVID-19 virus is a daily threat. Their longtime coach at the Etobicoke Swim Club died this week.THE CANADIAN PRESS/Graham Hughes