Smith said: "He comes out of plaster this week and will return to Britain next week.
"We will then assess when he can start training, but it will be August or September when he starts playing again.
"I only want to bring in one more and I will have 21 players, plus Juan Ugarte when he returns.
"That's riches compared to how many we had last season."
Smith is excited about the season ahead. He has signed Chris Llewellyn from Hartlepool, Neil Roberts from Doncaster, Ryan Valentine from Darlington and a clutch of current players have re-signed new deals. Mark Jones, Danny Williams, Lee McEvilly, Shaun Pejic, Lee Roche, Simon Spender, Levi Mackin, Mike Williams and Marc Williams are all on board for another season.