Injured NBL MVP Jaylen Adams and Tasmania JackJumpers starters Fabijan Krslovic and Jack McVeigh have all been ruled out of game three of the NBL grand-final series.
Sydney guard Adams missed game two with a low-grade hamstring strain, while centre Krslovic and forward McVeigh have influenza.
The JackJumpers must win on Wednesday or Sydney will complete a 3-0 sweep to secure its fourth NBL title and first since 2005.