The Australia international isn't fit to face the A-League outfit in a huge encounter between two sides hoping to reach the AFC Champions League Round of 16
The big Australian striker has battled a back problem in recent weeks but played almost a whole game in Saturday's J-League win over Vissel Kobe.
However, Nagoya boss Dragan Stojkovic told reporters that Kennedy wouldn't face the Mariners in the clash where the winner will progress to the knockout stage.
“Kennedy will not be in the team tomorrow. There is some problems with his condition. I respect his decision, so he will be out," Stojkovic said.
Seongnam, who host bottom-placed Tianjin on the final group matchday, top Group G on seven points, ahead of Nagoya on goal difference, while the Mariners are third on six points.
Stojkovic added: "Tomorrow is an important and interesting game because both teams have a chance. Winning the game is the most important thing for tomorrow."
The Mariners haven't played a competitive game since they thrashed Tianjin 5-1 in matchday five, following the conclusion of their A-League season.
Central Coast coach Graham Arnold said he hoped that may enable his side to be fresh for the must-win encounter despite the absence of Oliver Bozanic, Troy Hearfield (both injury) and Pedj Bojic (suspension).
“In our last performance we beat Tianjin 5-1 and the players were extremely fresh and fit and we have worked hard on the training ground with a friendly in between to get ready for tomorrow night,” Arnold said.