The NFL is America's most popular sport.  And it seems last season a lot of the players weren't protected adequately.

In the NFL players get to choose which helmet make and model they wear.  After a test of helmets at Virginia Tech they found the popular Riddell VSR-4 helmet received a very low rating in regards to protecting the wearer from concussions.

According to Riddell, 38% of NFL players wore that model last season.

With concussions being a point of focus for the NFL look for the league to step in a restrict these helmets.

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