How far is to far?

http://www.highschoolsports.net/sports/preps/football/2011-09-13-football-player-claims-he-was-hurt-by-coachs-punishment.htm

Athletics even at the high school level require dicipline. In order for an athlete to achieve goals and perform at the best of his or her ability, coaches tend to dicipline there athletes. I personally think that there is absolutely nothing wrong with discipline. It will not only help the athlete on the fields and courts but also in school and later on in life.
Coaches today have different point of views when it comes to dicipline. Some coaches will have a player "run laps" as a form of discipline while other coaches would argue that running is a privilege and should not be given to athletes as a form of punishment, I agree with this opinion. Some coaches may punish their athletes with more exercise, while others may suspend the athlete for a certain amount of time. The big question with discipline is "How far is to far?".
In the link above reads the story of an athlete that was disciplined to the point of near death. Read this article and please share your thoughts.