We all have our moments when we just want to hide and this young man did his when a lot of people were watching. What I would do is either do something fun at the next practice and get the kids to form together as a group. Or, do something that this young man could succeed in at the next practice, without him knowing you're doing this on purpose. Some kids do not want to be there but their parents have made them play for one reason or another and this might be the case for this guy. You've had him for a few games now, have you got a read on him and try to find out what makes him tick, what intrests he has that you might tie in to playing baseball and a pressure situation. What I like to do with my kids, young and old, is to enjoy a close game (which I truely love!) and make it even more fun. A lot of times a kid sees all the pressure and reacts to it in a negative way. I think this has been a nice life lesson for you as well Mr. Biittner!