Patrick Marleau scored two goals, Bill Guerin added the go-ahead score and the Sharks clinched a playoff berth with a 3-1 victory over the Kings on Tuesday night. Christian Ehrhoff had a career-best three assists and Evgeni Nabokov made 24 saves for the Sharks, who shook off a sluggish start in their return from a lengthy road trip to win their fourth straight home game -- their seventh victory in nine games overall.