Mariano Rivera - Wikipedia
Mariano Rivera, Biography, Stats, & Facts
File:Mariano Rivera pre-game in Baltimore 6-29-13.jpeg - Wikimedia Commons
New York Yankees - Wikipedia
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Mariano Rivera - Wikipedia
Todd Helton, A Better Baseball Player Than Mariano Rivera, Heads Toward Retirement Quietly
Mariano Rivera - Wikipedia
Core Four - Wikipedia
Book Review: “The Closer” by Mariano Rivera - Metsmerized Online
File:Mariano Rivera pre-game in Baltimore 8-26-11.jpg - Wikimedia Commons
