The NFL asked teams to eliminate "high-impact drills," including the well-known Oklahoma drill, in training camps in an effort to further reduce head trauma and concussions, according to Kevin Seifert of ESPN.com.
According to that report, "The recommendation came in response to data that showed a high rate of concussions during the early part of training camp in recent years."
This article will be updated to provide more information on this story as it becomes available.
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