[bob jenkins]

Originally Posted by nickrego

So, lets say F6 is playing deep, and runs hard forward to scoop up a low rolling grounder, well behind the runner's path, and his momentum takes him 3 or 4 additional steps into the path of a runner, who crashes into him. You're going to have the fielder protected for all those extra steps ?

Yes.

And to take it further, if the fielder never attempts to make a tag, because he still does not have control of his momentum when he collides with the runner, couldn't that be considered Obstruction ? Although, that would be a tough call to sell, since the fielder does have the ball.

Absent some malicious or TWP act (e.g., player on the ground with the ball sticks out his leg to trip the runner going by so the fielder can get to his feet and make a tag), a player with the ball cannot commit obstruction.