 Mitchell worked out for several teams after his release from the Chiefs , but did not sign a contract with any of them . He worked out for the Green Bay Packers on October 25 , 2005 , the Dallas Cowboys on August 6 , 2006 , the Cleveland Browns on October 11 , 2006 , the Toronto Argonauts of the Canadian Football League on February 11 , 2007 , the Tennessee Titans on July 26 , 2007 , and the Baltimore Ravens on May 29 , 2008 . The Philadelphia Soul of the Arena Football League expressed interest in signing Mitchell in January 2006 , but president Ron Jaworski , a former Eagles quarterback , had difficulties contacting him . 
