Whoa there Tiger.... My family is full of those Doctor people and my brother is a Doctor of Physical Therapy. There are many ways you can get a sports hernia, beside just "sudden movements or immediate twisting". Even the term "sports Hernia" is a generic term applied to a wide range of injuries. It doesn't necessarily even mean a hernia in the traditional sense of the word. The most common way to acquire a sports hernia is a weakening of the abdominal wall by some repetitious movement or a chronic inflammation of the ligaments/ tendons in the surrounding area. This is not an injury that stretching would have prevented...
I agree that MB is injury prone, and we need him now more than ever on our OL, but DressedCheese is right on this one.
Don't know what type of doctor people are in your family but if you look anywhere on the web, almost all sites will say sports hernias are preventable by "serious" stretching instead of the cheating type. No need to argue with you guys anymore. What is fact is that Morgan Bailey stays hurt and can't ever see the field. Make all of the excuses that you want, facts are facts.
Sample from internet search "how to prevent sports hernias": "In addition athletes must be given specific stretches to perform and more importantly be both told how and shown how to perform the stretch. Most athletes perform what I like to call "fake stretching". In "fake stretching" athletes get improperly positioned and make an attempt to look like everyone else. This is generally done to attempt to compensate for a large deficit. Remember, those that like to stretch are generally flexible and probably don't need to stretch. Those that dislike it are those most in need. Try to find stretches that allow athletes to use their bodyweight to help or that use props like boxes, tables or roller"