Brooks left the field in the second half and will miss this week’s match against a red-hot Dragons outfit.

“Brooks is undergoing treatment on the hamstring and will be unavailable for selection for this week's game against the St George Illawarra Dragons at ANZ Stadium," a club statement said.

Wests would not say how long the No.7 would be out for, however, it is understood Brooks will not be eligible for selection for a month.

Brooks has struggled for consistency this season as the off-contract half looks to pen a new deal.