BUFFALO, N.Y. -- Buffalo Sabres goalie Ryan Miller is out indefinitely with a concussion after being leveled by a hit from Boston Bruins forward Milan Lucic on Saturday.

Lucic was scheduled to have a disciplinary hearing with the NHL Monday at 1 p.m. ET.

"It's obviously something I have to go through. I'll state my case and whatever happens, happens," Lucic said Monday. "It's out of my control and all I can do is tell my story about what happened."

Bruins coach Claude Julien said that it wasn't "our plan to run him over."

"For what it's worth, Looch has done the same thing to one of our coaches last year," he added. "He buries his head when he chases the puck and by the time he lifts it up, somebody's there. Last year it was a coach, this year it was Miller."

The Sabres revealed the nature of Miller's injury Sunday, while also announcing they had called up goalie Drew MacIntyre from their AHL affiliate in Rochester. MacIntyre is expected to serve as backup to Jhonas Enroth on Monday night at Montreal.

"Hopefully it is not severe and hopefully it is not long term," general manager Darcy Regier told the Buffalo News on Sunday night.

Miller came out of his crease to play the puck and take away a breakaway opportunity for Lucic in the first period.