Comparing Mariano Rivera and Trevor Hoffman - The San Diego Union-Tribune
In what ways was Trevor Hoffman better than Mariano Rivera? - Quora
Q&A with the Man Who Came Up with Mariano Rivera's 'Enter Sandman
Trevor Hoffman - Wikipedia
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Yearly relief awards named after Rivera, Hoffman
Dennis Lin - Baltimore Sun
Dennis Lin - Baltimore Sun
The All-Time MLB Team, relief pitcher: Mariano Rivera - AZ Snake Pit
Trade launches Hoffman's historic run in San Diego
Mariano Rivera vs Trevor Hoffman
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Mariano Rivera vs Trevor Hoffman