This article was originally published on www.si.com/mlb/red-sox as Yankees' Jazz Chisholm Has Words For Red Sox Rivalry. The Boston Red Sox had one of their best weekends of the 2025 Major League Baseball over the last few days.

The Red Sox took three of four from the Yankees in New York, sending a message to their rival and other contenders in the American League.

Has the reduction in divisional play impacted storied rivalries such as this one, or Dodgers/Giants, which dates to the 19th century – older than the entire American League – and which shaped westward expansion when they jointly moved to California in 1958?