William Eklund scored in the closing seconds of overtime, Tomas Hertl had a hat trick and the San Jose Sharks erased a three-goal, third-period deficit to defeat the New York Islanders 5-4 on Tuesday night. Kevin Labanc also scored and Kaapo Kahkonen made 33 saves for the Sharks. “We never quit, we stuck with it and just put ourselves in a position to have a chance,” Sharks coach David Quinn said.