The Bruins came into the game 5-for-11 (45.5 percent) but was held at bay in each of their three man-advantage opportunities.
The series is tied 2-2 with Game 5 being played Friday night in Boston.
One of my favourite aspects of the National Hockey League playoffs is the back-and-forth chess match between coaches throughout a series. He was there available for the defence.
Kapanen got Toronto's second goal less than two minutes later, scoring on a wrist shot off assists from Andreas Johnsson and Morgan Rielly.
Not a good night for the refs, though the Leafs did outplay the Bruins for most of the night.More news: IPL 2019, Match 33: Sunrisers Hyderabad vs Chennai Super Kings - Statistical Highlights
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"It was probably the best game of the series as far as breaking the puck out cleanly and just communicating coming out of our zone", said Leafs centre Auston Matthews, who scored the first goal of the game in the third period. You don't know how to do that because you don't have to do that when you're a kid. There was a lot of gate slamming and stick banging on Toronto's bench after some alleged Bruin fouls went uncalled through 40 minutes.
The Hyman penalty provided Boston its best chance that period, but the Leafs had clearly learned from getting burned a couple of times in Game 4 and gave the Bruins nearly no clear looks.
The Bruins fans booed the announcement there was no goal.
Cassidy put right winger David Pastrnak with Krejci on the second line for the second game in a row. First Patrice Bergeron was denied on a wrist shot. He also moved Pastrnak back to the big line a few times.
Boston failed to convert on its three power plays, and Toronto was 0 for 1. The 5-foot-9 Ennis didn't evade the premises quickly enough for Chara's liking, so Boston's captain took matters into his own hands.