Looser friendships have existed since the 1990s with SC Freiburg. The greatest fan rivalry exists with FC Schalke 04. This animosity reaches its linguistic peak in the substitution of the rival's name with Luedenscheid-Nord (for Dortmund) and Herne-West (for Schalke). Bayern and VfL Bochum are also traditionally despised, and more recently RB Leipzig.