This Is John Clayton, The Greatest Sportscenter Ad Ever Brandon Caldwell September 7, 2012 Sports, TV/Movies If you’re an ESPN savant like the most of us sports junkies then you know John Clayton is the one man who seemingly is always shown above the waist when doing an NFL report. He’s essentially Mr. Peabody for the network, always giving straight laced answers and being the consumate professional. When ESPN and “This Is Sportscenter” decided to peel back the curtain on John boy – we find out something far more different. Share this:TweetShare on Tumblr Leave a Reply Cancel Reply Your email address will not be published.CommentName* Email* Website Notify me of follow-up comments by email. Notify me of new posts by email.