Right now the most hated player is Alex Rodriguez of the yankees.
The New York Yankees, terrorists, and Adolf Hitler tend to top the list of the most-hated people.
Zlatan Ibrahimovic after his transfer to rivals,Inter in 2006
For some reason people hate the Yankees, but that's bogus because the Yankees are AWESOME!!!!!!!!
Phillies are their divisional rivals, but Yankees are their city rivals who they fight with for fans, sponsorship etc.
The Red Sox's rivals are the New York Yankees.
the Yankees have a few rivals, two of which are the red sox and mets
New York Yankees
New York yankess(most hated riverly) , Tampa bay devil rays , Baltimore orioles and philadolpha phillies
Their families were traditional rivals and hated each other.
The Braves, the Yankees, the Phillies, the Nationals want to be, but the Mets are to good for them.