Munster fell to their fifth straight defeat in all competitions as Zane Kirchner's last-minute intercept try sealed a 24-7 win for Leinster at Thomond Park.
Sean O'Brien has rejected multiple lucrative offers in France to commit his long-term future to home province Leinster, signing a new three-year deal with Leinster and the Irish Rugby Football Union (IRFU).
Toulon turned on the power in the second half to secure a 20-16 win at the Aviva Stadium and end Leinster's interest in this season's European Champions Cup.
Ian McKinley's hopes of returning to play in Ireland have received a major boost after the Irish Rugby Football Union announced its application to take part in the ongoing trial regarding the use of protective goggles in-game.
Reigning champions Toulon got back to winning ways in the European Champions Cup and sent another triple winner Leinster out of the reckoning for another title with a 24-9 defeat at Stade Mayol.
Former Ireland flanker Kevin McLaughlin is the latest in a worrying trend of rugby stars forced to prematurely retire from the game due to concussion-related issues.
Toulon needed extra time to beat Leinster 25-20 in a compelling European Champions Cup semi-final and make it through to a third consecutive European final.
Clermont were simply glorious; Leinster were brutally efficient. Saracens were powerful and clutch, whilst Toulon, believe it or not, were a tad lucky.
Ian Madigan booted Bath out of Europe as they made an agonising Champions Cup quarter-final exit in Dublin, despite scoring both tries of an absorbing Aviva Stadium encounter.