FILE - In this Dec. 2, 2014, file photo, NFL executive Troy Vincent becomes emotional as he testifies on Capitol Hill in Washington, before the Senate Commerce Committee hearing on domestic violence in professional sports. Troy Vincent reached out to Adrian Peterson to try to help the 2012 league MVP, hoping his guidance could get Peterson's life back on track after child abuse charges. But now, the former All-Pro cornerback and players' union president finds himself at the center of a legal dispute between the union, the NFL and Peterson after their back-channel, informal conversations. (AP Photo/Susan Walsh, File) Photo: Susan Walsh, STF / AP