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]
(..) you never brought me up here! -Tennis whites? Mission to Mars! -l know, l know, l know. Check this out! Kung fu fighting. Campus hero with matching sports pennant, huh? Flower power! Oh, Ken! No one appreciates clothes here, Barbie. No one. Ken, would you model a few outfits for me? (..)2010 Toy Story 3