Manu joined Hull from Castleford in 2007

Forward Willie Manu has agreed a new two-year deal with struggling Super League side Hull FC.

The 28-year-old Tonga international, who joined the club from Castleford in 2007, will now stay with the Black and Whites until at least until 2010.

"I can now fully focus on playing some good footy," Manu said.

"I am really happy to be staying at the club for another two years. Since coming to Hull I have really enjoyed myself," he added.