Why aren't Astros, Braves wearing World Series patch on jerseys?

Uni Watch's Friday Flashback -- When MLB's Opening Day glitters with gold - ESPN

This 2017 World Series patch is a unique rubber feel, bendable patch. Licensed by MLB. Made by The Emblem Source.

2017 World Series Astros vs. Dodgers Embosstech Collectors Sleeve Patch

Houston Astros Oxy Patch: All about World Series champions unpopular sleeve sponsor

Astros' Alex Bregman credits playoff success to having fun

Phillies vs. Astros: World Series Game 5 score, highlights, injuries, next game, schedule

Source: No MLB Postseason Patch on Caps or Jerseys in 2021 – SportsLogos.Net News

MLB players can wear nicknames on their jerseys for one weekend. Here are some ideas

Jose_Altuve

Uniforms- Reports are saying that MLB and Nike are going to a 4+1 system. Each team is only allowed 4 uniforms for the season + Nike City Connect. ( Braves don't have City

2021 MLB playoffs - How the Atlanta Braves stunned baseball to reach the World Series - ESPN

How the Braves were built: Inside the extensions that turned Atlanta into a perennial contender