On each article post, there are at least 3 related posts and 6 featured posts. Each of them contains an excerpt of its own.
Each article page will show different related posts (though sometimes will be similar) but will show exactly the same featured posts (with its excerpt).
So in summary, there will be 600-1000 words of content and another 200-350 words of excerpts that will always be the same on each article post.
Will this cause any problems with SEO? Does it harder for me to rank? Is there a way to work around this, without removing the excerpts?