Dubinsky wandered to the right side of the ice as he approached Antti Niemi and fired a slap shot past the goalie, handing the Rangers a win that gave them sole possession of seventh place in the Eastern Conference standings.
Erik Christensen and Mike Sauer added goals and Henrik Lundqvist turned aside 31-of-33 shots for the Rangers.
Niemi made 20 saves for San Jose.
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