… but I think pitchers are taught to keep their arm warm, wrapped in a towel or whatever while on the bench. Your grip in cold weather might also be impracted. But hitters have similar issues to deal with.

I’ve played baseball just about all my life including a few semi-pro stints in a few different cities. I always hated pitching in the cold. My arm never felt loose and I never felt like I could throw as hard as when it was warm or hot outside.

The whole premise of keeping your arm warm by wrapping it in a towel is one of biggest fallacies in all of baseball. People do it all the time, but it doesn’t make much sense. Your blood circulates throughout your body, so just keeping one appendage wrapped up does little. In order to keep the arm warm, a full jacket is needed to keep your entire upper body warm. Other than that, moving around as much as you can in between innings to keep the body temperature at an elevated state. I really don’t think there is much more risk in getting injured in the cold than any other time as long as you are properly warmed up—which may take longer to do. But once you are there, I don’t think it poses significantly more risk.

Really, there isn’t a whole heck of a lot you can do. But the hitters are just as cold, so they have to deal with the same issues keeping the mechanics of their swing smooth.

for your information. It helps me understand it better.