When visiting your local library, try checking out books on sports. We have books on sports from baseball to skateboarding. Some titles have information about the history of the sport and tips on how to improve. Others tell about the lives of famous sports people.
Here's a quote from the book called, Take Me Out To The Ball Game by Jim Burke:
"Almost forty years would pass before Jackie Robinson became the first black player to walk out on the sweet green grass of a Major League ballpark. Robinson didn't just integrate baseball; he integrated the stands. And when that happened, the United States of America changed forever. Regardless of heritage, we could all sing 'Take Me Out to the Ball Game' and mean it. We could all root, root, root for the home team. Together. And we still do today."