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Who was first to wear green St. Patrick's Day uniforms?
![MLB Teams Wearing Green Caps, Jerseys on St Patrick's Day](https://pbs.twimg.com/media/FnvG_CLXEA4Emnw?format=jpg&name=large)
Brendan Campbell on X: While MLB teams will be limited to four
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Red Sox Wearing Green Uniforms, Green Hats in Honor of St
![MLB Teams Wearing Green Caps, Jerseys on St Patrick's Day](https://arc-anglerfish-arc2-prod-tbt.s3.amazonaws.com/public/2CERA3K64ZDYFPTQ33EHSZUGJM.JPG)
FIRST LOOK: MLB's onfield 2019 St. Patrick's Day caps
![MLB Teams Wearing Green Caps, Jerseys on St Patrick's Day](https://news.sportslogos.net/wp-content/uploads/2018/02/MLB-St-Patricks-Day-2018-2.jpg)
MLB Teams Wearing Green Caps, Jerseys on St Patrick's Day
![MLB Teams Wearing Green Caps, Jerseys on St Patrick's Day](http://vendettasportsmedia.com/wp-content/uploads/2021/03/la_g_billingsley01_576.jpg)
The Origins Of MLB's Green Saint Patrick's Day Uniforms - Vendetta
![MLB Teams Wearing Green Caps, Jerseys on St Patrick's Day](https://content.sportslogos.net/news/2019/03/st-patricks-day-caps-MLB-baseball-2019-all-teams-590x721.jpg)
Green Caps Across MLB Today for St Patrick's Day – SportsLogos.Net
![MLB Teams Wearing Green Caps, Jerseys on St Patrick's Day](https://cdn.vox-cdn.com/thumbor/pXzu8q0phdgvQRhkUu38PfNZ04s=/0x0:2400x1920/1200x0/filters:focal(0x0:2400x1920):no_upscale()/cdn.vox-cdn.com/uploads/chorus_asset/file/10456059/dodgers_mothers_day_cap_2018.JPG)
MLB uniforms 2018: Special event & holiday Dodgers caps and
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New Nike uniform rules prohibit Phillies from wearing green St
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St. Patrick's Day 2019: Here's a closer look at the MLB New Era