Schalke 04 will reportedly receive a reduced number of tickets for the local derby against Borussia Dortmund on November 8 after their fans threatened to boycott the fixture.
Schalke supporters are unhappy at the conditions imposed by local police authorities on their movements to and from the stadium on the day of the game.
Dortmund police want all Royal Blues' fans to congregate in one area before being escorted to the Westfalenstadion.
According to Sport Bild, Dortmund will give 6,000, instead of the usual 8,200 away allocation, to Schalke supporters for next month's Revierderby.
It is thought that Schalke might not even fill the reduced allocation if fans follow the calls of many supporter groups to boycott the match.