Adrian Beltre 'completely happy' with retirement after 21 seasons - ESPN
You don't see stuff like that in the big leagues. Adrián Beltré makes his retirement official - The Athletic
Adrian Beltre retires: Rangers, MLB less fun without him - Sports Illustrated
Former Red Sox 3B Adrian Beltre retires after 21 seasons – Boston 25 News
Adrian Beltre, 21-year MLB veteran, announces retirement
Tuesday's MLB: Texas Rangers' Adrian Beltre retires after 21 seasons
Rangers' Adrian Beltre retires after 21 seasons, 3,166 hits – The Denver Post
What Happened To Adrian Beltre? (Story)
Adrian Beltre inducted into Rangers Hall of Fame with PA man Chuck Morgan
Rangers' new manager will have youngsters, likely no Beltre
Beltre missing baseball less than he thought after 21 years
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Texas Rangers to retire Adrian Beltre's No. 29 jersey - Sports Illustrated
Former Boston Red Sox 3B Adrian Beltre announces retirement
Adrian Beltre retires from baseball after 21 seasons, 3,166 hits - The Globe and Mail