2021 Boston Red Sox Uniform Tracker, Sports
Scoreboard Watching 2021: Tracking the Wild Card rivals' final series - Pinstripe Alley
Red Sox without the red: Boston unveils yellow uniforms with Marathon in mind - The Athletic
Ranking MLB's City Connect uniforms - ESPN
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Red Sox Wear Yellow, Nike Launches New MLB City Connect Uniform Series for 2021 – SportsLogos.Net News
2023 MLB Uniform Rankings
MLB City Connect series: All 20 uniforms ranked, including the 2023 gear - The Athletic
Red Sox Rolling With City Connect Uniforms; 'We Love These Unis
Red Sox broadcaster to offer streaming service outside of cable bundle
Two weeks in, Boston Red Sox believe there's something special going on with 2021 team