Meghan Mahon, goal ball athlete, poses for a portrait at Bethany Chapel gym in Calgary on Sunday, Feb. 13, 2022. Goalball is a team sport designed specifically for athletes with a vision impairment and Mahon, who has 10 per cent vision as a genetic cone-rod retinal condition (achromatopsia), wears number four and plays the centre position for the Canadian women’s goalball team.