Scarlets will take on defending Guinness PRO14 champions Leinster in a rescheduled Guinness PRO14 match on Saturday, January 30 (19:35 kick-off).
The round eight clash at Parc y Scarlets was postponed at the end of November because of Covid-19.
The match will be televised live by S4C and Premier Sports and will be the first meeting between the sides in more than two years.
The creation of fixture lists for rounds 12 to 16 and for the Guinness PRO14 Rainbow Cup is also in progress.