I got a tip from a friend and multisport coach
Coach Debi – http://ucandoitcoach.com/
1. Do you sit a lot in your job?
2. Do you ever stretch/roll, etc. your quads?
3. If you lay on the floor, does your lower back arch up, or can it lay flat without forcing it?
If you answer yes to all of the above? Go to: http://mobilitywod.blogspot.com/ as today they have a great segment that you can use to help floss the hamstring/groin region.
In fact this should be a bookmarked web page for all athletes. He's got some great stuff, and you can learn a ton as you go along.