Mariano Rivera Calls Alex Rodriguez, Andy Pettitte 'Brothers': Discusses New Book, Humble Beginnings at 92Y Event

Mariano Rivera, the greatest closer in MLB history, was promoting his aptly titled memoir The Closer Tuesday night in New York City at the 92Y with Amy Robach of Good Morning America driving the conversation. While their talk traversed his entire career, the word of the night was humble.
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