Hull FC have signed Tongan prop forward Sam Moa on a one-year contract.
The 22-year-old, who played three times for Tonga in the World Cup, is waiting for his visa to come through before joining up with his new team mates.
"Sam is big, strong and a powerful ball carrier who has the potential to make an impact," said Hull head coach Richard Agar.
"We have signed him for the season and if things work out then we will look at the situation at the end of the year."
He added: "He has very much come to prove himself, and we'll give him that chance.
"He is a raw talent with the potential to be a Super League front rower."