Andrew Luck confirms retirement: 'I'm in pain'
Andrew Luck's retirement speaks to the rigors and risks of the NFL
The science behind Andrew Luck's shock NFL farewell, NFL
Stages of Grief: A fan's perspective on Andrew Luck's surprising retirement - Stampede Blue
Leak of Andrew Luck's retirement provides journalism lesson
Commentary: Andrew Luck surrendered to his pain — a daring thing for a man to do
Andrew Luck retires: The Colts quarterback complimented defenders who inflicted pain.
My mouth literally dropped open': How the news spread and the Colts reacted to Andrew Luck's retirement - The Athletic
Luck's retirement focused attention on mental health and injury recovery
Colts QB Andrew Luck to retire after latest injury, is 'mentally worn down'
Packers can relate to pain that drove Andrew Luck into retirement
Andrew Luck's retirement prompts anger in some, respect from others, and provides solace for him #Colts
Andrew Luck Retiring From NFL Because He Is 'Mentally Worn Down'
Watching Andrew Luck play football was a privilege, letter says