Rupapare will undergo surgery following a heavy knock to his shoulder late in the first-half at Young.

“It’s disappointing as it looks like a three-month injury,” club president Rick O’Connell said.

In good news for Thunder, David Cowhan is a chance of overcoming a knee injury in time for this weekend.

He is picked to play for the Riverina under-23s against Monaro at West Wyalong on Saturday before doubling up against Kangaroos on Sunday.

Monara thrashed Western Rams 62-0 at the weekend with Riverina coach Josh Cale an interested onlooker.