Coverage of the NFL in Guardian Caps
NFL's top doctor does not expect Guardian Caps to be worn in games
NFL's Chief Medical Officer Dr. Allen Sills on League's 2021 Covid
NFL Chief Medical Officer Dr. Allen Sills talks field surfaces
Raiders, other NFL teams wear Guardian Caps for head safety
Kyle Turley sets the record straight - by Melissa Jacobs
Carolina Panthers NFL helmets training camp
NFL hires Dr. Allen Sills as full-time chief medical officer