An Argentine scrum-half, a Wallabies centre, an All Blacks back-rower and an Irish prop head a stellar cast signed by Biarritz for the Top 14.
Dave O'Callaghan and James Hart are being lined up for a summer switch to French Pro D2 club Biarritz after failing to get much of a look in at Munster under Johann van Graan.
The Pro12 play-offs are now starting to take shape as Leinster booked a home semi-final and Munster confirmed a place in the top four.