Prop Peter McCabe got the first try of the day on 19 minutes , which went unconverted .
A second by Sam Arnold , converted by Crosbie , established a 15 - 3 half - time advantage for Munster .
Prop Peter McCabe got the first try of the day on 19 minutes , which went unconverted , and a second by Sam Arnold , converted by Crosbie , established a 15 - 3 half - time advantage for Munster .