Kane was hurt in the first period of Thursday's 6-2 win at Arizona when he collided with teammate Mark Schiefele. Kane left the game and did not return.
Maurice and the team are officially calling it a lower-body injury.
Kane, 23, had 19 goals and 41 points in 63 games last season.
The Jets are in San Jose to play the Sharks on Saturday night.Suggest a correction