Adrian Beltre announces retirement after 21 year career : r/sports
Adrian Beltre retires: Rangers 3B done after 21 seasons - Sports Illustrated
What Happened To Adrian Beltre? (Story)
Adrián Beltré Day: Thighs, Cups, and Hindsight - Baseball ProspectusBaseball Prospectus
Adrian Beltre to officially retire Friday
Sample Player Profile Page
Beltre 'completely happy' with retirement after 21 seasons
Rangers' Adrian Beltre Retiring - CBS Texas
Fan favorite: Beltre enters Rangers Hall of Fame three years after retirement, Sports