He hunts and fishes 'for sport'. [=he hunts and fishes because he enjoys it and not as a job or because he needs food for survival]
My brother likes 'sports'. [=he enjoys playing and/or watching games such as football, baseball, basketball, golf, etc.]
He lost but he was a 'good sport' about it. [=he was not rude or angry about losing]
(..) Well, here is looking at you, kid. You have anything to declare? Nothing. You may proceed. I come here very often. I come here for the winter sports, for the skiing. So do I. Why have we never met? Well, it's quite simple really. I get up at the crack of da- (..)1975 The Return of the Pink Panther