A brief guide to MLB's weird, arcane uniform guidelines - Sports
Should MLB Eliminate Uniform Numbers — and Even Jerseys — for
baseball - Why have some MLB managers stopped wearing uniforms
How players are using uniform numbers to break MLB's unwritten
RMSTeam/training.txt at master · sowjanyaswathi/RMSTeam · GitHub
When did baseball players stop wearing jersey numbers based on
When did baseball players stop wearing jersey numbers based on
dm_project/output_2013.json at master · bennettmountain/dm_project
What the Yankees' uniform number crunch could cost MLB's managers