Ticket sales for Leinster v Castres have passed 17,500 with tickets available from the RDS box office tomorrow.

Leinster take on Castres in a crucial Champions Cup game this Saturday in the RDS Arena with tickets available from Ticketmaster

Tickets can also be purchased from the RDS box office inside the Anglesea Road entrance and from Ticketmaster Centres around the country. Click here to find your nearest Ticketmaster Centre.

Tickets can also be purchased by calling 0818-719-300. 

Leinster defeated Castres last October in the Stade Pierre Antoine, with 21 points coming from Ian Madigan in a hard-hitting encounter.

A win tomorrow will put Leinster in a strong position to qualify for the Champions Cup quarter-finals, so come and give the boys your support!

Click here to get your ticket for Leinster v Castres