Andrew Porter is set to return to action this weekend, after recovering from a calf injury.
The prop missed this year's Six Nations, having been ruled out since January.
Further assessments are required for James Ryan and RG Snyman, while Ryan Baird is due to return to full training this week.
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Leinster face Scarlets in the URC on Friday night at the Aviva Stadium.
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Ireland internationals Craig Casey, Jeremy Loughman and Jack Crowley have all joined up with the Munster squad in Cape Town.
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Munster face the Bulls this Saturday afternoon.
