 Professional baseball player J.D. Martinez knows how important it is to help protect his lung health during baseball season and beyond. That's why he's taking steps to understand his risk for pneumococcal pneumonia, a potentially serious bacterial lung disease. Because I have asthma, I'm at a higher risk for certain illnesses like pneumococcal pneumonia. I don't want anything to get in the way of my baseball season or my life, so I talk to my doctor about ways I can help lower my risk.