Well, I have to tell you that you are not supposed to play sports when you have pink eyes, for they can be infected, and in this way it can make your eyes more serious. As we know that pink eye is redness and inflammation of the membranes covering the whites of the eyes and the membranes on the inner part of the eyelids. And generally speaking, it can be caused by irritation, allergies, eyestrain, environment, wearing contact lenses, dry eyes. So when you play sports go outsides, your eyes can be irritated by some allergies. So anyway, you should not do that. In my opinion, you can put some ice on your eyes and change it frequently. And also, drop some eye drops, so it can relieve the symptom. Also, there are also some other symptoms such as itching, burning or stinging, discharge, swelling, watering. So just be careful about it.