Growing Petition Calls For NFL To Retire Pat Tillman's No. 40 Jersey
U.S. Marine petitions to retire Pat Tillman's number across NFL
Former Patriots WR who retired from NFL to serve in Navy has Bill Belichick's respect
Push to Retire Pat Tillman's Jersey Number Gains Momentum
Pat Tillman to be commemorated by honorary captains at Super Bowl LVII
For offseason workouts, NFL players negotiated directly with their coaches - The Boston Globe
Petition Made To Have NFL Retire Pat Tillman's Jersey
Pat Tillman uniform number should be retired by NFL, petition says
Alfred Williams Elected To College Football Hall Of Fame - University of Colorado Athletics
A Football Life': Pat Tillman's decision to leave football