Calling all trainers

The quadricep is slightly sore. It hurts when I lift my foot off the ground, particularly in a full run. I noticed it first late in the second quarter of the boys' game. I think it actually got better in the second half, and I was only beat down the court once. I've iced it twice (for about 20 minutes each).

Any recommendations for how to get my 3-person girls' games in tomorrow? Do I stretch it while I work (I'm a teacher), ice it up, heat it, attach electrodes, do self-acupuncture?

Then, any recommendations for what to do over the restful weekend to get it back for my games next week?

Seriously...give me your advice.