Utai will come onto the wing to replace the injured Marika Koroibete who is out indefinitely with a foot injury.
Koroibete will be a big loss, hes been very exciting out there on the wing and has scored a few tries, Potter said.
Luckily we have Utai returning from a neck injury.
Potter has been impressed with rookie prop Jack Buchanans form in the first three rounds.
When you think that our pack's age is relatively young compared to the NRL standard, Jack Buchanan has been going fantastic, Potter said.
I'm happy with his work rate and with what he does out there.
It's a really tough job to be up against people who are older than him but he's showing that he's strong enough and willing enough.
Stay tuned for the full team that will be announced later this afternoon on weststigers.com.au