Adrian Peterson rethinks running style after seeing league video

Minnesota Vikings running back Adrian Peterson is known for his bruising running style. But watching video in a recent meeting with NFL officials has the star player reconsidering how he runs the football.

Peterson explained his change of heart to the Star Tribune on Tuesday.

Hits by Peterson and Cleveland Browns running back Trent Richardson were featured in the video screened by league officials as part of an effort to educate players on how the new crown-of-the-helmet rule will be called during the season.

-- Marcas Grant, contributing editor

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