Simon Lewis Munster Rugby has pledged to further investigate an incident at the end of their Champions Cup semi-final at the Ricoh Arena when a supporter appeared to confront Saracens player Billy Vunipola on the field.

In a PRO14 final of real quality, illuminated by nine smashing tries, Leinster turned on the class in their final appearance of the season to achieve what even their stellar side that dominated Europe between 2009 and 2012 found beyond them — a European and domestic double.

Keith Earls summed it up neatly when asked this week about what sort of pedigree Saracens will bring to Saturday’s Champions Cup semi-final.

Leo Cullen’s bitter disappointment at Leinster’s failure to make the Pro12 play-offs last season has made the new head coach determined not to lose focus on the league campaign as the Champions Cup pool phase looms large.