Tommy O'Brien celebrates scoring his team's sixth try during the Quilter Nations Series 2025 match between Ireland and Japan at the Aviva Stadium on Saturday. Photograph: Charles McQuillan/ Getty ImagesIt’s one of the curious aspects of Tommy O’Brien’s career that he eventually earned his first three full international caps in Tbilisi, Lisbon and Chicago, but it’s another thing winning your first cap in Dublin. “It’s my first one in the Aviva, my first time playing for Ireland at home, so that was pretty special. He grew into the game and the ball also came his way more than in Soldier Field, where O’Brien had just three carries. [ Ireland v Japan player ratings: Tommy O’Brien stars as bench makes big impactOpens in new window ]Ireland's Tommy O'Brien says he is 'really enjoying myself so far'.