O'Reilly will sit out Sunday's game against the Penguins with a lower-body injury.

EDGE Analysis

O'Reilly missed Saturday's game as well, so Sunday will mark a second straight absence for the 25-year-old despite optimism from coach Dan Bylsma that he'd be available. The Sabres don't play again till Wednesday against the Ducks, so O'Reilly should have another three days off to get back to full health.