Johann van Graan says 'discipline' the difference between Munster and Leinster performances

Munster were left to rue their poor discipline after succumbing to another Guinness PRO14 semi-final defeat at the hands of Leinster today.
Defending champions Leinster brushed their southern neighbours aside in a 24-9 victory at a sold-out RDS to set up a final at Celtic Park next Saturday against hometown club Glasgow Warriors thanks to second-half tries from Sean Cronin and James Lowe after a tight first-half contest had given them a narrow 9-6 lead.