Colts QB Andrew Luck announces his retirement
Opinion Why Andrew Luck's Retirement Was So Shocking - The New York Times
The Colts pulled the plug on Matt Ryan — and potentially on their season - The Boston Globe
Colts leave door open to Andrew Luck's return with stunning parting gift of $24.8M
Andrew Luck retired, and now the Colts are kinda screwed
Highlight} Andrew Luck: “I gotta go out there and fight” : r/nfl
Best wishes to Andrew Luck, but timing of retirement is questionable - The Boston Globe
Andrew Luck's life was always about more than football
Indianapolis Colts QB Andrew Luck Gave Up Fame, Riches, and Football - The Ringer
Andrew Luck finally reveals why he walked away from the NFL - ESPN
Patriots' Tom Brady reflects on Andrew Luck retiring: 'It's his life'
Andrew Luck retires: Colts quarterback stuns the NFL with shocking retirement decision at age 29
Tom Brady on Andrew Luck's retirement: 'He had a great career' - The Boston Globe