The Sharks may also be without Ben Pomeroy for the trip to the nation's capital after the centre was placed on report for a shoulder charge to the head of Thurston late in the game.
Pomeroy is almost certain to be referred straight to the NRL judiciary on Wednesday under the new guidelines imposed by the ARLC last Thursday.
FINALS - WEEK ONE
Qualifying finals
Friday
Canterbury v Manly, ANZ Stadium, 9.45pm.
Saturday
Melbourne v Souths, AAMI Stadium, 7.45pm.
Elimination finals
Saturday
North Queensland v Brisbane Broncos, Dairy Farmers Stadium, 9.45pm.
Sunday
Canberra v Cronulla, Canberra Stadium, 6pm.
The loser between Canterbury and Manly will meet the winner of North Queensland and Brisbane at home next week. The loser between Melbourne and Souths will meet the winner of Canberra and Cronulla, also at home. The winners of the qualifying finals advance straight to a home preliminary final on the weekend of September 21-22.