Andrew Luck informs Indianapolis Colts he's retiring from NFL
Colts QB Andrew Luck retiring - Cincy Jungle
NFL cult hero Andrew Luck in shock new career venture as he returns after early retirement aged 29
Colts QB Andrew Luck is retiring from the NFL - Dawgs By Nature
Rick Zamperin: Andrew Luck retires, had enough of 'injury, pain, rehab' cycle - Hamilton
Andrew Luck retired, and now the Colts are kinda screwed
Andrew Luck retires: Colts' personnel moves forward with Jacoby Brissett - Sports Illustrated
Column: Just because Andrew Luck does superhuman things doesn't mean he's not human - The San Diego Union-Tribune
Indianapolis Colts quarterback Andrew Luck to retire at age 29