MLB Don Mattingly Signed Trading Cards, Collectible Don Mattingly Signed Trading Cards
Lot Detail - 1989-1990 Don Mattingly New York Yankees Game Worn Jersey W/ Billy Martin Number (MEARS A9.5)
Lot Detail - 1991 Don Mattingly Game Worn and Signed New York Yankees Cap ( Yankees Pro Shop COA & PSA/DNA)
Robert Edward Auctions - The Premiere Sports Auction House
Donnie Baseball era dawns: Mattingly takes Marlins' reins – Orlando Sentinel
Ten Reasons the '23 New York Yankees Appear to Be on Life-Support
Don Mattingly 100 Values - MAVIN
DON MATTINGLY NEW YORK YANKEES BASEBALL CARD
New Captain Aaron Judge Ready To Lead Yankees To Title Chase
Former Yankee and Marlins hitting coach weighs in on J.T. Realmuto, Giancarlo Stanton and more – New York Daily News