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As his last gig before retiring as a football coach after nearly 30 years in the business, Don Wnek finished off his career as a defensive line coach for Baylor from 2005-2007.

His methods were pretty old school, as seen here in this dug-up clip that shows him using an actual knife during a defensive linemen drill.

RELATED: Nothing to see here, just a 150-mph rocket knife absolutely demolishing a Jeep

This certainly isn’t your average football drill. We’d hate to see the players who goofed this one up.

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