A: It kind of depends on where you get the tattoo. If you get it right on your shoulder blade where you'll be stretching that muscle a lot to throw the ball, it might cause some stress to a new tattoo. If you get something large that covers your calf, which is another area that is flexed a lot when running, it could be stressful to new ink. However, with really good care those first three days, it's more than likely that your tattoo would be okay as long as it's not a really large piece. The sweating won't be so much an issue as long as you shower immediately after playing and keep it clean and hydrated when you're not exercising. Just be careful with it and you should be fine.