Well put. The goal is to get better, not "tougher" (or foul mouthed). I would not tolerate that behavior at my workplace, and the players should not be subjected to it on the ballfield.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .