Left knee trouble

Hmmm, should have known the downhill in the race yesterday would take its toll. Today my left knee (lateral side; IT band maybe?) started bugging me a lot about halfway through my SugarHouse Park loop. I got home, but had to walk (limp) slowly down the last hill. The downhills hurt the most. Ugh. It's fine now that I've been home for a while, but I'm concerned. Will ice, rest, take some ibuprofen, and pray that this is no big deal and that it will be better tomorrow. We have a TNT workout tomorrow that I need to coach!