Andrew Luck retires: Why did Andrew Luck quit
Pain and Resentment and the Inspiring Retirement of Andrew Luck
My mouth literally dropped open': How the news spread and the Colts reacted to Andrew Luck's retirement - The Athletic
Opinion Why Andrew Luck's Retirement Was So Shocking - The New York Times
Andrew Luck retires: The Colts quarterback complimented defenders who inflicted pain.
Andrew Luck's retirement speaks to the rigors and risks of the NFL
Andrew Luck's retirement prompts anger in some, respect from others, and provides solace for him #Colts
Rookie of the year to be handed out Saturday. RG3, Andrew Luck or Russell Wilson? : r/nfl
Where has the time gone?!' Recalling Andrew Luck's shocking retirement
Former NFL Players Show Why Andrew Luck's Retirement Isn't a Surprise
Andrew Luck shares regret of retirement announcement to ESPN
Today's Sports Stars Get Booed for Acting Human When Hurt