Indianapolis Colts quarterback Andrew Luck stunned the NFL on Saturday evening when he abruptly announced his retirement from football at the age of 29. The Colts had just played their third preseason game when Luck made the decision public; the regular season begins in two weeks. The oft-injured Luck said the decision was the hardest in his life. "I've been stuck in this process," he said, referring to his fairly constant string of injuries over the last four years. "I haven't been able to live the life I want to live. It's taken the joy out of this game." Luck added that "the only way to move forward" was to leave football. When Luck was healthy he was one of the game's elite passers. The Colts were widely considered title contenders before the announcement.

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