Andrew Luck reveals what he's been up to since abrupt retirement
Andrew Luck Retires & Gets Booed by Fans
Pain and Resentment and the Inspiring Retirement of Andrew Luck
Andrew Luck retiring from NFL: What we know about his decision - Sports Illustrated
Watching Andrew Luck play football was a privilege, letter says
Years of exhaustion in Andrew Luck's football life forced him to carry out a vow
Indianapolis Colts knew Andrew Luck was considering retirement
Best wishes to Andrew Luck, but timing of retirement is questionable - The Boston Globe
Pain and Resentment and the Inspiring Retirement of Andrew Luck
Andrew Luck retirement was a rational choice - The Washington Post
Andrew Luck Announces His Retirement From The NFL