Kuraly wasn't the only role player to come through in Game 4. David Backes, who had been a healthy scratch since Game 6 of Boston's first-round series with the Maple Leafs, was back in the lineup and - as he did in Game 2 against Toronto - made an immediate impact.
Backes drew two penalties, delivered a team-high five hits, and picked up the secondary assist on Kuraly's third-period goal, while playing a tad over 10 minutes.
"I thought he had a strong game, good on forechecks, smart with the puck," said David Krejci, who played with Backes and Jake DeBrusk. "He did lots of little things, like helping me on the faceoff and those 50-50 battles. He won a couple for me in the O-zone, got the puck to JD and had a great shot. Those little things go a long way. It was good to see him back and play the way he played."
The veteran winger was knocked from the game briefly midway through the first period when he took a Dean Kukan elbow to the chin. Backes went to the dressing room with help from trainer Don DelNegro, but returned shortly thereafter and drew another penalty - an interference call on Adam Clendening - in the second period.
As he spoke to the media on Friday morning, Cassidy said while he had not seen Backes yet, "I assume he's feeling well. He finished the game, played hard. Hopefully good to go [for Saturday]."
Thus, Cassidy seemed to confirm that Backes would be back in the lineup for Game 5.
"I thought he did his job well," said Cassidy. "That's one of the things I do believe David has…Karson Kuhlman is younger, he's more of a motor guy that can adjust on the fly and give us that energy level after sitting. David's a little more intangible, his physicality, some of the leadership skills that are a little bit behind the scenes on the bench and in the room that go unnoticed at times but are still important."