The Boston Red Sox have one of the most storied rivalries in all of sports with the New York Yankees. A lot of the rivalry has been VERY long built, but it sure didn't help that Boston was in the middle of a many decades long title drought and Yankees fans relished in reminding Boston fans of it when they were winning ring after ring.
Things have been different lately as the Red Sox have been holding their own in the World Series title department, but the hatred between the two teams has remained. Ask fans of either team which team they despise the most and you will not have to wait long to hear the Yankees or Red Sox mentioned.
The rivalry goes so deep that if a player of one team leaves to join the other, many fans will blacklist that player for all eternity. However, that hasn't stopped some brave souls from making that leap anyways.
Here are the Red Sox players that betrayed Boston fans and joined the Yankees
There is a healthy mix of guys in here from guys that got traded directly to New York (one in particular still gives Red Sox fans heartburn) to guys that signed with the Yankees immediately after leaving Boston to guys that eventually found their way to the Yankees after other stops. Not all of these players are created equal with some being resented more than others, but they all deserve some mention.
Without further delay, here are the Red Sox players that betrayed fans and joined the Yankees in no particular order.