Aging Athletics Pitcher's Substantive Success - The New York Times
Should the Oakland A's pursue Bartolo Colon? - Athletics Nation
Bartolo Colon Oakland Athletics, Sports
Source: Colon, A's agree to 1-year deal
Bartolo Colon Announces Retirement; New York Mets to Honor Him in
Mets Re-Sign Bartolo Colon - MLB Trade Rumors
Oakland re-signs Bartolo Colon - Lone Star Ball
Bartolo Colon set to pitch in Mexican League in 2021
Source -- Bartolo Colon agrees to one-year deal with Oakland A's
What has been the secret to Oakland's early success? - Athletics
Bartolo Colon: Ready For One More “BIG” Season in Oakland
At 40 years old, Colon still brings heat