Thursday's health and safety news from the world of football: on former wide receiver Tom Waddle, who is an investor in a concu sion tech start-up busine s. to Chris Valetta, who was part of a panel of former players that recently met with NFL Commi sioner Roger Goddell about the league's personal conduct policy. that tight end was one of 22 NFL players who helped to film public service announcements against domestic Mathieu Joseph Jersey violence. that 's foundation donated gear to prevent youth football head injuries. the area's high school athletic trainers and their role in the community football teams. a new helmet sensor being tested at an area high school. on a study that said offensive linemen are least likely to report head injuries. to members of the Allegheny Health Network, who said education is the key to preventing and treating concu sions.-- Bill Bradley, contributing editor Nick Leddy Jersey