Categories News USL USL coaches react to potential ‘head injury substitution’ rule change for 2020 Post author By Mitchell Northam Post date May 21, 2019 Dave Sarachan, David Bulow and Tom Soehn offer their comments on the potential “head injury substitution” rule change. Tags Birmingham Legion FC, Dave Sarachan, David Bulow, featured, head injuries, Jake Edwards, North Carolina FC, Richmond Kickers, Tom Soehn, USL, USL Championship, USL LEague One