Just wanted to ask a question as to the pre game/pitching routine. We live in the Northeast and of course spring baseball seems more like winter baseball at times. It has been known to be in the 30's when my son has a game and needs to pitch. Last year he had a strained muscle in his back after pitching in very cold weather and wasn't properly warm. He started the game ok but as the innings progressed he would get cold between innings even with his arm covered. He suffered the injury after a particularly long sit between innings. My question is to get some input on any pre and between inning routines pitchers can do especially when the weather is cold?