 He then transferred to Oklahoma State, earning third team All-Big 12 Conference honors and playing in the East-West Shrine Game his senior year after posting 57 tackles, five PBUs, and a team-leading 21 TFLs & 9.5 sacks.Parker signed with the Tennessee Titans as a rookie free agent in 2001 and spent four years as a backup.Parker was signed by the Philadelphia Eagles in 2005 to serve a similar role, and he recorded six sacks in 2006 following an injury to starter Jevon Kearse.