Replacements add necessary urgency as Ireland complete convincing six-try defeat of Japan

Andy Farrell handed a Test debut to 32-year-old Munster centre Tom Farrell and returned a fit-again Caelan Doris to the captaincy at No.8 after a successful comeback from injury off the bench against the All Blacks

Tommy O'Brien dives over to score his side's sixth try. Pic: Shauna Clinton/Sportsfile

Quilter Nations Series: Ireland 41 Japan 10

Ireland completed a six-try defeat of Japan in their Quilter Nations Series home opener in Dublin but it was a match that failed to spark in its early Saturday afternoon slot on a busy schedule of Test rugby.