File:CA do Porto.png

Fair-use rationale for Clube Atlético do Porto

 * 1) obtained from the club website
 * 2) low resolution image
 * 3) no non-copyright version available, by definition
 * 4) the logo is only being used for informational purposes
 * 5) its inclusion in the article adds significantly to the article because it is the primary means of identifying the subject of this article