The Windsor Spitfires will be without co-captain Jeremiah Addison for Games 3 and 4 against London at the WFCU Centre.
The OHL has suspended Addison for two games for his five-minute major and game misconduct for cross-checking London's Max Jones during the Spitfires' 5-2 loss to the Knights in London on Sunday.
The league reviewed the incident Monday and assessed a two-game suspension.
Addison scored two goals for the Spitfires, including the overtime winner, in Game 1 Friday night.
The best-of-7 Western Conference quarterfinal series is tied 1-1.