Strictly business at Leinster

Friends one week, foes the next.

It’s always been thus for Ireland’s elite batch of internationals, but it will be new ground for Leinster’s Josh van der Flier when Munster come calling to the Aviva Stadium for tomorrow evening’s Guinness PRO12 interpro derby.

It is only a fortnight since he last shared a dressing room with Keith Earls, Simon Zebo, Conor Murray, Donnacha Ryan, CJ Stander, and Tommy O’Donnell. Most of them had spent the bones of two months together in Ireland HQ.