Sergei Bobrovsky had a long stretch without seeing a shot on goal in the middle of the game, and then there was a flurry in the third period. Bobrovsky had 23 saves for his first shutout of the postseason, and the Panthers beat the New York Rangers 3-0 on Wednesday night in Game 1 of the Eastern Conference final. “I think you have to be a veteran goalie to do what he did tonight,” Panthers coach Paul Maurice said.