You don't see stuff like that in the big leagues. Adrián Beltré makes his retirement official - The Athletic
Adrian Beltre PSA ProBatFacts℠
Not in Hall of Fame - 18. Adrian Beltre
The Rangers Just Spent a Bunch of Money. Now They Should Spend Even More of It. - D Magazine
Did Adrian Beltre have the quietest hall of fame career in recent memory? : r/baseball
Is Adrian Beltre one of the most underrated MLB players of all time? - Quora
MLB offseason tracker: Blue Jays add Chad Green to bullpen MLB - Bally Sports
Reflecting on this year's Hall of Fame ballot - Red Reporter
Short Relief: Further Reflections on Adrián Beltré - Baseball ProspectusBaseball Prospectus
Intense and eccentric, no one had more fun than Adrian Beltre - ESPN
What A Drag It Is Getting Old – SABR's Statistical Analysis Committee