A red-card to Sam Arnold proved costly for Munster as Ulster bounced back from a 17 point deficit to win the Pro 14 clash in Belfast with a 24-17 margin.
Ireland international CJ Stander has extended his stay with Pro 14 club Munster after signing a new three-year deal with the Irish Rugby Football Union.
Ian Keatley contributed with 20 points as Munster boosted their chance of making into the knock-out stage of the European Champions Cup with a 16-25 win over Leicester Tigers at Welford Road on Sunday.
Barbarians Women emerged victorious on their first ever outing as they went on to beat their Munster counterparts with a 19-0 triumph at a wet Thomond Park on Friday.
Simon Zebo's participation for Ireland in the 2019 World Cup has taken a beating after the winger has announced his decision to leave Munster and head overseas at the end of the ongoing season.
Munster managed to survive a second-half onslaught from Castres as they held on for a 17-17 draw in their European Champions Cup Pool Four opener at Stade Pierre Fabre.
Lock Tadhg Beirne's chances of claiming an Ireland Test spot has received a huge boost as he is set to join Pro 14 club Munster ahead of the 2018/19 season.
Munster managed to maintain their unbeaten streak in the ongoing season of Pro 14 as they overcame Ospreys with a 16-21 triumph in their Pro 14 clash in Swansea.