It’s possible fans who have seen photos from the Kansas City Chiefs’ training camp in St. Joseph noticed something unusual.
Some players are wearing foam coverings over their helmets, giving the impression they have comically large heads. In reality, they are wearing Guardian Caps as part of an NFL mandate, which was passed in March, per ESPN.
Here is more about the caps, including why they’re in use in Chiefs camp and around the league.
Who’s wearing them?
The Sporting News said linemen, tight ends and linebackers must wear the caps, although the entire Steelers team will use them.