Trevor Hoffman: Career timeline, stats, numbers & 'Hells Bells
June 6, 2007: Padres' Trevor Hoffman closes out Dodgers for 500th career save – Society for American Baseball Research
Trevor Hoffman's Hall of Fame case: Examining the closer's career - Sports Illustrated
Trevor Hoffman - Wikipedia
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Trevor Hoffman - Wikipedia
Hoffman, Trevor Baseball Hall of Fame
Mariano Rivera - Wikipedia
Hall of Fame ballot: Is Trevor Hoffman worthy of a plaque? - Sports Illustrated
The Hoffman Generation
What makes each member of this HOF class a Hall of Famer - ESPN