Why are the Boston Red Sox wearing yellow and blue uniforms today?

Red Sox to wear three uniforms in series versus Angels: What they mean

Zach Plesac throws ball out of Fenway Park; Red Sox beat Guardians

This Impressive Stat Should Give Red Sox Nation Hope That Boston Could Snatch Playoff Spot - Sports Illustrated Inside The Red Sox

Minnesota Twins vs. Boston Red Sox live stream, TV channel, start time, odds

Justin Turner of the Boston Red Sox celebrates his double against the News Photo - Getty Images

The Boston Red Sox Have Traded Their Red, White, And Blue For Banana-Colored Jerseys - Boston Uncovered

Campaign: Nike City Connect Returns To Boston. - Billie Weiss

Red Sox improve to 5-1 vs. Yankees thanks to Brayan Bello

Boston Red Sox yellow and blue uniforms return ahead of 'special' Marathon Monday