Mariano Rivera, legendary Yankees closer, through the years – New York Daily News
What has happened previous times the Yankees have acquired a Cy Young? - Pinstripe Alley
Notable Moves Under Steinbrenner - Sports Illustrated
Mariano Rivera, legendary Yankees closer, through the years – New York Daily News
Pinstripe Alley Top 100 Yankees: #60 Jason Giambi - Pinstripe Alley
Mariano Rivera's Priceless (and Pricey) Gifts on Display at Cooperstown - The New York Times
Yankees–Red Sox rivalry - Wikipedia
New York Yankees, History & Notable Players
Mariano Rivera, Biography, Stats, & Facts
This Day in Yankees History: Roger Maris hits 60th home run, ties Ruth - Pinstripe Alley