Using information collected from team doctors, the league also said there was a 23 percent decrease over the past two seasons in the number of concussions caused by helmet-to-helmet contact.
Speaking at a pre-Super Bowl news conference Thursday, Jeff Miller, the league’s senior VP of health and safety policy, calls the data “positive trends.”
Some players have expressed concern that the NFL’s emphasis on decreasing hits to the head could lead to more low hits and more knee injuries. But Miller says there has not been an overall increase in damaged knee ligaments.
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