Feet are amazing aspects of anatomical architecture. Your challenge is to make sure yours are happy this week. With all the locomotion we've been doing this fall, it's natural for feet to get tired or sore. But we need to avoid injury. Make sure all your footwear (that you use for training in particular) is in good shape. Also, take a cool soak and then lay down with your legs up on the wall for a few minutes, pumping your ankles a bit as well.