Work on hip flexor stretching!
I posted this stretch in my log awhile back, it's easy and works well without needing a massage therapist.
O.k. just so you know it'll make you look silly but it does work if you do it right and is very effective!
I use the squat rack.. grab the 45 pound bar add some weight (don't do 45 pound plate's they are to big and it won't work) on each side. Lay fully on the ground place the weighted bar just below the ASIS bones (hip bones). Make sure it lays right in the crevass (Watch your ummm goods)
It will fell really tight and you'll maybe even want to arch your back to help take some of the stretch out of the Sartorius, and rectus femoris but don't. Keep the abs tight, low back flat to the ground, legs straight, feet turned in just a bit, breathe, and try and relax into the bar. Let it hold for like a minute rest a minute and do it again. Each time it should get easier and you know they are stretched when your feet want to flop to the side. I would first try with no weight until you understand what it feels like... The weight is what really gets them to release! In between releases you can always do pelvic tilts to strengthen the low back.
Follow that up with a quad stretch, and TFL stretch. If you want me to type that out let me know.