Coach Aurelio Vidmar has cited a fever for the omission of Cassio.
“Definitely they are out,” Vidmar said.
“He wasn't looking good, so we don't take any risk," he said of Cassio.
Diego will miss with a groin complaint but should get up for the next game.
"We thought he would be all right for tomorrow night. But it's still a little bit sore. We really don't want to take a risk,” Vidmar added.
"Strong players will come into the squad. We expect them to do their job. For sure, it's probably not our strongest line up, but we've got confidence."