re: OT Medical Drs - How egregious is misdiagnosising a broken leg as a bruise??

As stated, stress fractures can take weeks to show up. I don't know the story, or if he had an actual injury. An acute fracture would definitely show something. The fibula almost always has some displacement, even if slight.

Having said that, I can't imagine why you wouldn't just get an MRI on any football player with an injury. The cost is a drop in the bucket compared to missing something.