And with all four SWALEC Cup semi-final teams coming from the Scarlets and Ospreys regions, regional fans will be able to snap up tickets for Sunday's semi-professional showdown at Saturday evening's west Wales derby match (kick-off 5.30pm).
A SWALEC Cup semi-final ticket booth will be set up in the south east corner of Parc y Scarlets and tickets will be sold from 3.30pm. Tickets are £5 for concessions and £15 for adults. This will be a cash only service.
Tickets are also on sale from the Liberty Stadium ticket office to personal callers, online at www.liberty-stadium.com, by calling 08700 400 004, and from the participating clubs.
The SWALEC Plate and Bowl semi-finals will take place on Saturday 18 April, 2.30pm.
In the Plate, Ammanford take on Rhydyfelin at Glynneath RFC, while Risca play Tredegar Ironsides at Blackwood RFC and in the Bowl competition, Maesteg RFC will host Morriston v Pontyclun and Lampeter Town and Glyncorrwg will play at New Dock Stars. Entry for the Plate and Bowl semi-finals will be pay on the gate, £5 for adults and £2 for concessions.
The finals of the SWALEC Cup, Plate and Bowl will take place at the Millennium Stadium on Saturday 9 May.