Yankees retire Paul O'Neill's No. 21 jersey, Cashman booed
New York Yankees history: Paul O'Neill's number 21 must be retired
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Yankees fans boo Hal Steinbrenner during Paul O'Neill ceremony
New York Yankees retire Paul O'Neill's No. 21; GM Brian Cashman, owner Hal Steinbrenner booed by fans - ESPN
Aaron_Boone
Brian Cashman
New York Yankees retire Paul O'Neill's No. 21; GM Brian Cashman, owner Hal Steinbrenner booed by fans - ESPN