Flyhalf Jack Crowley kicked 13 points as Munster overcame Ospreys 23-7 at Thomond Park to earn a United Rugby Championship home semi-final.
Munster Rugby and the IRFU confirmed the signing of former Junior Springbok Thaakir Abrahams on a two-year deal.
Munster became the first European team to win at Ellis Park in the United Rugby Championship (URC) this season after demolishing the Lions 33-13.
The Lions have suffered a double injury blow with centre Henco van Wyk and fullback Quan Horn missing from the team that will face Munster in the United Rugby Championship (URC) encounter on Saturday.
Munster coach Graham Rowntree gave a positive update on the Springbok Jean Kleyn's eye injury.
Munster posted a statement victory in their quest for back-to-back United Rugby Championship (URC) titles as they beat the Bulls 27-22 at Loftus Versfeld.