Leinster’s Garry Ringrose celebrated Adam Byrne’s try against Bath in their  Champions Cup Round 4 match at Aviva Stadium on December 15th, 2018. Photograph: Laszlo Geczo/Inpho

Leinster v Ulster Venue: Aviva Stadium Kick-off: 5.45pm. On TV: Live on BT Sport. What’s seldom is usually wonderful. To put this quarter-final in c(...)