Per Liz Mullen, Roc Nation Sports has signed its first coaching client, Cleveland Browns head coach Hue Jackson. Jackson will be represented by agent John Thornton, who also represented him when Thornton worked at Octagon. Thornton, who negotiated Jackson’s four-year deal with the Browns in January 2016, left Octagon for Roc Nation three months later. The two worked together when Thorton […]