Rams' Keenum scares teammates with remote-controlled tackle dummy

The Los Angeles Rams showcased several of their remote-controlled tackle dummies on Tuesday's edition of "Hard Knocks", and quarterback Case Keenum couldn't resist using them to prank his teammates.

Keenum placed the dummy at the entrance of the Rams' practice field, and waited for his unsuspecting teammates to walk by.

While watching players run when the dummy came hurtling toward them was hilarious, receiver Tavon Austin had the best response, taking the dummy head on.