When Sergio Romo makes his first appearance for the Dodgers this year, he will become the 226th player in MLB history to have played for both the Dodgers and the Giants. That’s a lot of players, and a reminder that no matter how much stock fans may put into the rivalry between the two teams, baseball is first and foremost a business, and first and foremost a job for these guys.
That said, the Dodgers and Giants don’t do business together all that often. In the entire history of the two franchises, they have completed just ten trades, and only three since the teams relocated to the west coast.