Take a look at the CBS Sports API. It is better to use the authorized tools to get your data than try to subvert the TOS scrape the site.

Nota Bene: CBS provides a lot of Developer tools to develop your own Apps for the Fantasy Leagues. You might want to start with the "Create Applications" tab and go from there.

Update -- I did a little wandering through CBS Sports site and found the Terms of Service document. The second and fifth bullet points address web-scrapping. It boils down to "Don't Do It".