Vanecek allowed a goal on 29 shots in Saturday's 2-0 loss to the Ducks. The second goal was an empty-netter.
The game was scoreless for 51 minutes before Isac Lundestrom tallied. Vanecek put in a good performance against a weak opponent, but a lack of goal support from his teammates stuck him with the loss in his Sharks debut. Mackenzie Blackwood allowed five goals in an overtime loss to the Blues on Thursday, so Vanecek's stronger performance despite a worse result could help him stay in the mix for playing time. The Sharks play three games in four days on the road next week, beginning with Tuesday's visit to Dallas.