This season's Pro12 semi-finals take place in Dublin and Galway this weekend.

If you're hoping to get tickets in before Friday's and Saturday's games, you've left it too late.

Leinster Rugby have announced that their semi-final with Ulster has already sold out, despite adding an additional 700 seats to the RDS for the game. Over 19,000 will be in attendance in the Dublin 4 venue on Friday evening.

Our #GUINNESSPRO12 semi-final v @UlsterRugby at the RDS Arena is now completely sold out! #LEINvULS pic.twitter.com/fsLiE1WvMf

— Leinster Rugby (@leinsterrugby) May 16, 2016

Last week, it was confirmed that Connacht's semi-final with Glasgow had already sold out. The two teams met in the last round of the regular season, with Connacht winning 14-7.

Guinness PRO12 semi-final Connacht V Glasgow is a sell out! https://t.co/cSdkEmXszI

— Connacht Rugby (@connachtrugby) May 12, 2016

The winners of the two semi-finals will meet in Murrayfield on May on May 28th.