Pittsburgh Penguins head coach Mike Sullivan said Sunday Sidney Crosby is day-to-day after being taken out of the Penguins' final pre-season game for precautionary reasons.

Crosby left the Penguins' game against the Buffalo Sabres Saturday after blocking a shot in the first period.

Bryan Rust, who also left Saturday's game after blocking a shot with his hand, is still being evaluated, per Sullivan.

Sullivan also said Alex Galchenyuk is making progress and remains day-to-day.

The Penguins open their season on Thursday against the Sabres.