Thomas Greiss, who wasn't even playing in the NHL last season after being deemed the odd man out between the pipes, has played like a legitimate NHL-caliber goaltender so far this year. Currently filling in for the injured Antero Niittymaki as the team's backup, Greiss' play as of late may earn him a full-time backup role if he can keep it up.
He's not the only player on the San Jose Sharks' roster who has surprised, for good or bad, this season. The lineup is full of players who have performed above and below expectations, raising some eyebrows in the process.
Here are five Sharks who have either had a shockingly positive impact on the team, or a startlingly negative one.