Top: Kids and Teens: People and Society: Biography: Athletes (2)
http://www.simiax.com//Kids_and_Teens/People_and_Society/Biography/Athletes/index.htm

ESPN.com: Top North American Athletes of the Century - Provides photos and biographical articles about the top 100 athletes of the 20th century, as selected by ESPN.

My Hero: Sports - Short student-friendly biographies of men and women who have left a permanent mark on the world of sports.