Former Eagles defensive end Chris Long announces retirement
Eagles' Chris Long announces retirement after 11 NFL seasons - The San Diego Union-Tribune
Chris Long explains decision to retire from Philadelphia Eagles
What's next for the Philadelphia Eagles defensive ends after Chris Long's retirement?
Philadelphia Eagles - Wikipedia
Eagles' Chris Long announces retirement after 11 NFL seasons - Encyclopedia of Greater Philadelphia
Chris Long, ex-NFL DE, on why he retired; would 'consider' comeback
Former Rams linebacker James Laurinaitis retires after eight NFL seasons - Los Angeles Times