The Toronto Maple Leafs let a series win slip through their fingers and Henrik Lundqvist was perfect again for the New York Rangers in a night of Game 7s. This and more in Monday's Stanley Cup stories:

1. Hockey Night in Canada's opening montage was set to Metallica's Seek & Destroy, and that's exactly what the Bruins did to the Maple Leafs in Game 7. Toronto held a 4-1 lead in the third period, with a trip to the second round so close they could taste it. But it all came crashing down for the Leafs when Boston roared back and scored three times in under 10 minutes to force overtime. Centre Patrice Bergeron, who had the tying goalstruck again in OT to cap a 5-4 Bruins' victory and end the Leafs' playoff run.

2. With Boston's rally over Toronto, the Bruins became the first team in NHL history to win a Game 7 after trailing by three goals in the third period. Current and former NHLers congratulated the Bruins on accomplishing the feat. Ex-Maple Leafs winger Mark Osborne tweeted, "I just witnessed the unthinkable in Boston. Never seen or experienced anything like this. At 4-1 I was thinking of home ice vs Rangers.. Not." Supporters of the blue and white were just as stunned, but remained proud and optimistic.

3. In another Game 7, Henrik Lundqvist picked up where he left off in Game 6 against the Capitals. The Rangers netminder made 35 saves for his second consecutive shutout as New York eliminated Washington with a 5-0 win. Washington sniper Alex Ovechkin couldn't solve the Blueshirts after only scoring one goal in the series. New York faces Boston next in the East semifinals, with Game 1 set for Thursday (7:30 p.m. ET).

4. The lone Canadian team left in the playoffs and the top seed in the Eastern Conference kick off CBC's coverage of Round 2 beginning Tuesday night. The Ottawa Senators continue their quest to bring the Stanley Cup back to Canada for the first time in 20 years when they face Sidney Crosby and the Pittsburgh Penguins (CBC, CBCSports.ca, 7:30 p.m. ET).  On Wednesday, Jonathan Toews and the Chicago Blackhawks open their series with the Detroit Red Wings, who are fresh off a comeback series win over the Anaheim Ducks. Check out Hockey Night in Canada's full playoff broadcast schedule.

5. The Chicago-Detroit semifinal matchup will be the last Original Six playoff clash in the West, with the Red Wings moving to the East next season. Will Detroit make another statement and topple the first-place Blackhawks? Senior hockey writer Tim Wharnsby picks the dominant Chicago squad in his Western Conference second-round preview.