Friday's health and safety news from the world of football:
- Fox Sports reported that four leading physicians with ties to the NFL and NFL Players Association reminded team medical staffs this week to be vigilant about how the league's concussion protocols. The move comes after at least four players this season have suffered concussions that were either missed by medical officials or denied by players.
- CBS Sports also reported on the issue, including Jahleel Addae of the Chargers.
- NFL.com reported how Pittsburgh Steelers cornerback William Gay is wearing purple cleats as part of his efforts against domestic violence.
- After the St. Louis Rams lost Sam Bradford and Chris Long to ACL injuries, the St. Louis Post-Dispatch talked to knee injury experts who said re-injured ACLs are common.
- The Sacramento Bee reported on how the San Francisco 49ers are teaching running back Marcus Lattimore how to get hit again after sitting out nearly two years rehabbing his injured knee.
- 49ers.com featured Fleet Week in San Francisco and how some 49ers players visited sailors on the U.S.S. America.
- BaltimoreRavens.com reported on the Ravens' PLAY 60 youth military combine.
- WKYT-TV in Lexington, Kentucky, looked at how many schools in state use helmets that pass the Virginia Tech STAR ratings.
- WMAQ-TV in Chicago found that many high schools in the area are still using outdated football helmets.
- WINK-TV in Lee County, Florida, looked at helmet safety in its area.
- WALB-TV in Albany, Georgia, reported on the dangers of using older football helmets.
- WAFB-TV in Baton Rouge, Louisiana, reported how the LSU football team is leading the way in concussion technology.
- WPBN-TV in Traverse City, Mich., profiled a local high school student who has been speaking out on concussion awareness.
- Med Device Online previewed a concussion-monitoring mouthguard that is coming to market soon.
-- Bill Bradley, contributing editor