OWINGS MILLS, Md. — Some of the Ravens players look sort of silly wearing the mandated Guardian Cap helmets in practice. 

However, they are embracing the science behind it even if they are a bit uncomfortable.

“Supposedly, the research shows it helps the linemen with their heads – it takes some force off our brains a little bit,” right guard Kevin Zeitler said. “It’s a little warm and heavy right now, but if it’s for our future health, it’s totally worth it.”