(CBS) — Matt Forte took to twitter to criticize the proposed NFL rule change that would penalize ball carriers for lowering their heads.

“The proposed rule change for running backs might be the most absurd suggestion of a rule change I’ve ever heard of,” Forte tweeted. “In order to lower ur shoulder u obviously have to lower ur head. It’s a way of protecting ur self from a tackler and a way to break tackles.”

Forte also tweeted, “U can’t change the instinctive nature of running the football.”

The proposed rule would give a ball carrier a 15 yard penalty for initiating contact by lowering their head when the runner is outside of the tackle box.