Chicago Blackhawks work through special teams struggles during Stanley Cup Final

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CHICAGO — Heading into the Stanley Cup Final, the perception about Chicago’s special teams was its penalty kill was terrific and the power play couldn’t get much worse. Four games into this series, things might be changing.

Chicago is hoping its penalty kill can return to the form that produced a 94.8 percent efficiency rating through three rounds. At the same time, there was guarded optimism that the power play could be reinvigorated coming off a stronger Game 4 effort.

So far the Bruins have converted four times in 13 power-play opportunities — including 2 for 5 in Game 4 — a far cry from the way Chicago stymied Western Conference opponents throughout the season while down a man.

On Wednesday night, the Bruins took advantage of their opportunities, which came with a dose of good fortune.

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