Tomas Hertl scored twice, Joe Thornton had a goal and two assists and Antti Niemi stopped all 24 shots he faced as the San Jose Sharks blanked the Vancouver Canucks, 5-0, at SAP Center.
Dan Boyle and Logan Couture also scored to keep the Sharks unbeaten in five preseason games.
Eddie Lack stopped 28 shots for the Canucks, who lost their second straight on the road.
Hertl opened the scoring at 10:37 of the first period, redirecting a shot by Scott Hannan. Boyle's goal came two minutes later. Thornton scored at 11:21 of the second period directly after Couture won a faceoff during a power play. Couture added a power-play goal with a minute left in the period.
Hertl, who has a team-leading three goals in the preseason, scored his second goal at 2:25 of the third.
"There's great competition," Sharks coach Todd McLellan said. "It can't be a comfortable camp for everyone. We can't keep all of these guys."