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Kwon Alexander expected to sign 1-year deal with Jets (0:31)

The New York Jets have a new member in the middle of their defense. There is a 0:31

3:03 PM ET

The new Guardian Cap is causing players to use their helmets more than usual, and the coach of the New York Jets is worried about the possible effects when they are removed later in the preseason.

The spirit of it all is great. There's a balance in everything, right? After practice, he said. Too much is not good.

The players are able to use their heads a bit more because of the soft blow. It's a shock when you take your helmet off for the first time, even if you've never played football before. I believe that if you wait until the first game for that shock to happen, you'll be fine. Time will tell. What exactly are we trying to accomplish with those Guardian Caps?

The cap must be worn by offensive and defensive linemen, tight ends and linebackers during the second preseason game. The outer shell of the helmet is provided by the cap. The goal of the league is to reduce the number of concussions. He said he was worried.

There is an acclimation period that is needed for actual pads for what they are actually going to use. "If you're waiting until the game to actually feel that, I think it's going to be interesting to see what kind of feedback we get from players."

The Jets have never had a player complain about the cap. It just takes a while to get used to them.

The defensive end said it felt a little heavier. You feel like you're getting old. It's not terrible. We strike with our hands as a defensive linemen.