[Spence]

My understanding in FED is that the runner cannot truck the catcher. He has to either slide or go around the catcher.

Runner rounding third heading for home. Throw is up the 3rd base line. F2 goes after the throw and there is a collision between the runner and F2.

What are you looking for in order to determine if this violates the "don't hit the catcher" rule? The runner clearly sees the catcher coming up the line. Is that enough? Does the distance away from home plate come into play?