Derek Jeter will be final single-digit number retired by Yankees - Newsday
Boston Red Sox - Wikipedia
How the Red Sox Eliminated the Yankees, Inning by Inning - The New York Times
Are there any other Yankees who should have their numbers retired? - Pinstripe Alley
Aaron Boone, coaches could lose numbers with Yankees running out
Retired numbers hi-res stock photography and images - Alamy
Red Sox Retired Numbers
MLB roundup: Red Sox hand Yanks 8th straight loss
Yankees want to stop issuing uniform numbers to managers, coaches because they're running out
Derek Jeter's No. 2 retired: See all New York Yankees retired numbers
4 SIZES - Boston Red Sox custom Retired #'s Vinyl Decals MLB Man Cave Display
Predicting the Next Retired Number for Every Team - The Crawfish Boxes
Yankees retire Paul O'Neill's No. 21 jersey, Cashman booed