Munster will name their side later ahead of the Rabo Pro 12 meeting with Cardiff this weekend. They will have to plan without a number of internationals while they will also be without James Cronin for a number of weeks.
Cronin suffered an ankle injury in Munster's Champions Cup game against Saracens. After meeting with the specialist this week the prop has been ruled out for a minimum of 6 weeks and will not play a part in Ireland's November Guinness Series.
Top of the table Ospreys look to continue their unbeaten start to the rugby union Pro12 season tonight.
They take on Connacht. Second placed Glasgow are also in action, as they play Treviso. Edinburgh go to Leinster in this evening's other match.