Tadulala has scored 23 tries in 26 appearances since joining the Bulls from Wakefield, and believes there is much more to come.

"I've still got plenty of room for improvement," he said. "I'm always pretty critical on myself and scoring 23 tries doesn't change that because I'd have liked to have done a lot better and can do more in attack and defence."

He added: "I'm definitely pleased to get the contract sorted. It's taken a while but I'm glad it's all done now. It's only for a year but that's all I signed last time and it worked out."

Bradford coach Steve McNamara added: "I am delighted that Semi has decided to stay. I am looking for him to make an even bigger impact next season."