Kadri will sit out with a lower-body injury.
Jared Cowen will have to wait to make his Maple Leafs debut, as the 6-foot-5 defenceman will not be in the lineup Thursday. Cowen was acquired from Ottawa in the nine-player trade that sent Dion Phaneuf to the Senators earlier this week.
Kadri has 11 goals and 28 points in 52 games this season.
The Oilers host the Maple Leafs at Rexall Place. The game can be seen live on Sportsnet West and Rogers Game Centre Live beginning at 9 p.m. ET.