Yankees, Eager to Retire Numbers, Subtract Options for Current Players - The New York Times
Ranking the MLB teams ahead of the 2018 season - ESPN
Yankees to retire Paul O'Neill's No. 21: See the complete list of retired numbers
Padres' pitcher Blake Snell speaks out ahead of the trade deadline - The Athletic
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Are the Yankees likely to retire CC Sabathia's number? - Quora
Giants decline Vogelsong's option, both sides will explore market - Giants Extra
Are the Yankees likely to retire CC Sabathia's number? - Quora
New York Yankees Retired Numbers: A list of legends who have had their Pinstripes retired over the years
New York Yankees: The Numbers on the Wall
Masahiro Tanaka
On the Yankees, retired numbers and a solution in search of a problem