Samoa are in the same pool as South Africa, Georgia and England, so So'ioalo is likely to come up against a number of his Quins team-mates in the fight to qualify for the knockout stages of the tournament.

This will be the 30 year-olds third appearance in the World Cup, having also played in the 1999 and 2003 tournaments.

Prior to the Rugby World Cup, the Samoan squad will be visiting the Twickenham Stoop to play Harlequins in a friendly on Friday 17th August. The game will be part of Samoa's preparations for the tournament and Quins preparations for the start of the 2007/08 Guinness Premiership season.

The full squad is as follows:

Forwards: Census Johnston (Saracens, UK), Justin Va'a (Glasgow Warriors, UK), Kasiano Lealamajua (Dax, France), Donald Kerslake (Vaiala, Samoa), Mahonri Schwalger (Hurricanes, NZ), Muliufi Salanoa (Scopa, Samoa), Silao Vaisolasefo (Alhambra, NZ), Filipo Levi (Ricoh, Japan), Kane Thompson (Wests, NZ), Iosefa Fekori (Auckland, NZ), Daniel Leo (London Wasps, UK), Henry Tuilagi (UK), Siu Lafaialii (Yokogawa, Japan), Semo Setiti (Docomo, Japan), Ulia Ulia (Marist, Samoa), Justin Purdie (Wellington, NZ)

Backs: Steve So'oialo (Harlequins), Junior Poluleuligaga (North Harbour, NZ), Loki Crichton (Worcester, UK), Lolo Lui (Moataa, Samoa), Seilala Mapusua (London Irish, UK), Eliota Sapolu Fuimaono (Bath, UK), Jerry Meafou (Scopa, Samoa), Elvis Sevealii (Sale, UK), Anitelea Tuilagi (Leeds Tykes, UK), Brian Lima (Bristol, UK), David Lemi (Bristol, UK), Lome Fa'atau (Glasgow Warriors, UK), Alesana Tuilagi (Leicester, UK), Gavin Williams (Ponsonby, NZ)