Ireland made 13 changes from last weekend's record 38-3 victory over South Africa, and endured some nervy moments en route to their slender win over the eye-catching Pacific Islanders.
Another impressive showing from the Munster star: 7 (out of 10)
Grafted well but was not able to cut loose too often: 7
Solid enough without ever dominating on his Test debut: 6
A few too many errors for the Ulster battering ram to challenge Ireland's first-choice midfield: 6
Intercept pass for Nagusa try will have him kicking himself: 6
So good on the front foot but must round out his game: 6
Struggled to boss his side around the field: 6
Industrious early on but faded on return from injury: 6
Put himself about well enough overall: 6
The long-term project tighthead scrummaged well on his full debut: 7
Showed again why he is such a threat with ball in hand: 7
Bossed the lineout and offered a calm presence: 7
Dogged it out but was unable to direct the side in patchy moments: 6
Always works hard but did not reach the standards he sets for himself: 6
Took his try well and carried powerfully too: 7
: Ian Keatley's two penalties edged Ireland home, while Cian Healy and CJ Stander added impetus: 8