Brain damage in former soccer players fuels fears about heading

United States’ Julie Johnston and Canada’s Melissa Tancredi go up for a header during the first half of the CONCACAF Olympic women’s soccer qualifying championship final Sunday, Feb. 21, 2016, in Houston. United States’ Julie Johnston and Canada’s Melissa Tancredi go up for a header during the first half of the CONCACAF Olympic women’s soccer qualifying championship final Sunday, Feb. 21, 2016, in Houston.