Head injury in the NFL

Need the paper finish 

 Discussion :According to Gerald Graff and Cathy Birkenstein in They Say/I Say, Chapter 10, what is metacommentary? What is its function in academic writing? Give an example of how you utilize metacommentary in your Researched Position Paper draft.

Don't forget that in  order to be eligible to receive full credit for this discussion post, you must complete the prompt above and cite evidence from the reading to support your claims. In addition to your original posting to the discussion prompt, you must also respond to at least two peers postings. Please consult the discussion rubric (located in the syllabus) for grading criteria.