It has been a frustrating near 14-month stint on the sidelines at Munster for their injury-plagued out-half Joey Carbery.
Ireland centre Garry Ringrose will make his first start for Leinster since sustaining a jaw injury in the Heineken Champions Cup in December.
Danny Wilson's first full season in charge at Glasgow is a struggle, their defeat to Munster conjuring memories of their 2005/06 misfire.
The teams for the first Monday Night Rugby fixture of the 2020/21 Guinness PRO14 season have been named with Munster and Cardiff Blues battling to retain their unbeaten records.
Larmour had been named in Andy Farrell's squad for the upcoming Six Nations games against Italy and France, before suffering a dislocated shoulder.
The teams are all in for this weekend's round two action in the Guinness PRO14 following a week in which Ireland, Wales and Italy named Six Nations squads.
Peter O'Mahony got himself in a spot of bother in Wales last weekend, two yellow cards resulting in him seeing red for Munster.
With two Six Nations back matches to play, Andy Farrell has announced a 35-strong Ireland squad that will be skippered by Johnny Sexton.