What happened: Lindy Ruff said Jiri Kulich left tonight's game for precautionary reasons. Ruff added he is optimistic on Alex Lyon, who has an upper-body injury.

Why it matters: Kulich returned to training camp after blood-clot recovery, so availability drives his roster ramp. Lyon's status affects goaltending reps during preseason evaluation.

What to watch: Watch practice status for both players and availability for the next preseason game.