Hold the line, please <a href=" http://www.sayisallastirma.org/accutane-causing-mental-illness.pdf ">20 mg accutane a day</a> San Francisco 49ers&#39; Vernon Davis (left) endures a jarring hit by Seattle Seahawks&#39; Kam Chancellor during a game in December. Dwayne Bray, a a senior coordinating producer for ESPN, defended the network&#39;s coverage of violence in the sport during a panel promoting the upcoming investigative special, "League of Denial: The NFL&#39;s Concussion Crisis."