Ireland wrapped up their World Cup preparations in unconvincing fashion as they came from behind to beat Samoa.

Samoa led 10-7 at the break thanks to a converted Duncan Paia'Aua try and a Lima Sopoaga penalty after Jimmy O'Brien's early try.

While the Pacific Islanders stretched their lead to six, tries from Conor Murray and Rob Herring secured a record 13th straight Test win for Ireland.

But victory in Bayonne came at a price in the form of Cian Healy's injury.

The vastly experienced prop limped off in the first half with a suspected calf problem, handing Andy Farrell a last-minute selection dilemma before the head coach announces his 33-man World Cup squad on Sunday afternoon.

While Ireland continued their winning run to cling on to their world number one ranking, Farrell will almost certainly be concerned with a messy first-half display riddled with errors in admittedly testing conditions in south-west France.

While Ireland avoided a pre-tournament shock like England, who fell to Fiji earlier on Saturday, there is plenty for Farrell to ponder just a fortnight out from his side's World Cup opener against Romania on 9 September.

• Ireland beat Samoa in final World Cup warm-up game - reaction

Healy injury concern for Ireland

Less than 24 hours out from his squad announcement, one of Farrell's main concerns was to get everyone back on the plane to Dublin in one piece.

However, having already lost wing Keith Earls to a "niggle" an hour before kick-off, allowing Jacob Stockdale to step in, prop Healy hobbled off after just 21 minutes with a suspected calf injury.

Healy - who was making his 125th appearance for Ireland - cut a dejected figure as he exited the field, immediately casting doubt over the 35-year-old's World Cup chances.

As Healy appeared pitchside on crutches and with a protective boot on his right foot, his team-mates continued to hobble around on the field in a performance that will have done little to reassure Farrell and his coaching staff before launching their World Cup bid in a fortnight.

More to follow.

Line-ups

Ireland: O'Brien; Hansen, Henshaw, McCloskey, Stockdale; Crowley, Murray; Healy, Stewart, Bealham, Henderson (capt), Beirne, Baird, Van der Flier, Doris.

Replacements: Herring, Loughman, O'Toole, Ryan, O'Mahony, Casey, Byrne, Ringrose.

Samoa: D Paia'Aua; E Fidow, UJ Seuteni, T Manu, N Ah Wong; L Sopoaga, J Taumateine; James Lay, J Lam, P Alo-Emile, C Vui (co-capt), T McFarland, T Seu, F Lee, S Luatua.

Replacements: S Malolo, Jordan Lay, M Ala'alatoa (co-capt), M Fai'ilagi, SJ Taufua, E Enari, C Leali'ifano, N Foma'i.

Referee: Wayne Barnes (RFU)