For one late-August weekend each season (since 2017, at least) the MLB lifts its rigid decree of uniformity to allow its players and coaches a wild weekend in which they can wear, in game, their very own custom cleats, gloves and Little League-style jerseys with hand-picked nicknames on the back. It’s just a great time for everyone involved.
The Athletics have a rich history for nicknames, due in part to former owner Charles Finley’s — or Charlie O — affinity for them. Catfish Hunter is just another James without him.
There are no “Catfish” or “Rollies” on the 2019 A’s nickname list.