Great job again you guys. Sorry if I come off as a functional exercise freak, but it's important to the high school ATC. If you understand the anatomy & function of a muscle (with the foot on & off the ground) you can inexpensively put together a high tech rehab/conditioning program. In addition, you are preserving function in the gracilis & globally through the entire body. For instance, this athlete, even in the acute phase, was doing cariocas, forward skips, frontal plane double leg mini jumps, throwing - all pain free. I could not have done this if I had generically treated it as your everyday run of the mill hamstring strain.
Moving on, we know the gracilis also influences the pelvis. So, we also need to work top down. What type of core training might provide the gracilis with a better mechanical advantage?