Vlasic is questionable for Thursday's game against the Wild due to an upper-body injury, Kevin Kurz of CSN Bay Area reports. Vlasic didn't skate at Wednesday's practice a night after he collided with the end boards in a victory over the Oilers, resulting in him seeing a season-low 7:28 of ice time. His status likely won't be known until the Sharks conduct their gameday skate.