Infinite scroll on blog posts - bad for SEO/causes duplicate content?

Here's the scenario...a client wants to implement infinite scroll on blog posts. The way they developed their new blog post template shows a "related" article fully loaded right below the main article, and another article fully displayed below that, and so on. My thought is that this is not good for SEO. ***Does this setup mean Google will count all the additional articles' content below the main article as part of the main blog article's content, too?*** *And therefore:* *A. Dilute the main blog article's content/KW density because now there is all this extra text added to that page from a different article?* *-and/or-* *B. Consider it duplicate content because the same content will appear on multiple pages?* *C. Cause some cannibalization because of the above?*