Running - Young players should be careful when using spiked shoes for the first time to get short cleats, not to finely sharpened. Danger of long spikes for inexperienced players is that they are apt to catch in the ground and cause the ankles to turn. Such players must take especial care when sliding with new spikes. Above all do not change your mind after starting your slide and attempt to come back to an upright position. Go through, once you begin your slide. Even major league players suffer painful injuries by failing to observe this policy. Take your cue from "Pepper" Martin of the St.Louis Cardinals.