1. FC Union Berlin's home fixture with FC St Pauli on Sunday August 26 at the Stadion An der Alten Försterei is completely sold out.
Supporters who would still like to purchase a ticket for the third match of the campaign can check the secondary ticket market.
In section 2, 3 and 4, only members can purchase tickets. Tickets in section 1 are available to non-members, however.
Season ticket holders who don't plan to attend Sunday's game can put their ticket for further sale via the club shop either online or in person.
Further questions for the secondary ticket market can be sent to firstname.lastname@example.org.