Category:Infobox NFL biography articles missing alt text

Tracks uses of Infobox NFL biography with an image where alt is undefined but a caption is provided. In these cases the template populates the alt with the text "refer to caption." While this is preferred to omitting alt entirely, it's not assured that caption is a sufficiently descriptive substitution for alt text and as such these articles should be looked at for the addition of alt text which describes the content of the image.

For comparison, see for examples where the alt parameter is used and  for examples where neither caption nor alt are provided.