You can find articles by searching in WorldCat, but you will have better results by going directly to a database. Subject terms that work well in WorldCat, often yield good results in databases, too.
Journal of Sport History -- full text access in JSTOR from 1974 to 4 years prior to the present; full text access in Project Muse from 2010 to the present
Sport History Review is available online in America: History and Life. Articles are full-text. Follow the link provided to browse through the journal's issues. Click on the year and then the issue to find articles. Browsing through the list of articles might give you some interesting topic ideas.