The Anaheim Ducks completed a series sweep over the Calgary Flames, as the Washington Capitals drew level with the Toronto Maple Leafs.
Anaheim asserted their claim to the top with a 3-1 win in game four to progress from their opening-round Western Conference playoff tie on Wednesday.
Patrick Eaves, Nate Thompson and Ryan Getzlaf scored for the Ducks, who swept a best-of-seven series for the fifth time in their history as they await either the Edmonton Oilers or the San Jose Sharks in the second round.
The Capitals prevailed 5-4 against the Maple Leafs to level their series at 2-2.
Washington raced out to a 4-1 lead in the opening period before Toronto rallied late on home ice but the Capitals held on in game four.
The Minnesota Wild needed a headstand from Devan Dubnyk to blank the St Louis Blues 2-0 and stave off elimination until at least game five.
Minnesota still trail St Louis 3-1.
The Ottawa Senators beat the Boston Bruins 1-0 for a 3-1 series lead.
T.J. Oshie, Capitals - Washington's top line was their best line, accounting for three goals in a critical victory in game four to pull even with the Maple Leafs. Oshie was credited with two of them - his first of the playoffs - including the one that stood as the game-winner when Toronto made things interesting in the final minute. Honourable mentions for line-mates Alex Ovechkin and Nicklas Backstrom for coming up big.
Craig Anderson, Senators - Anderson's 22-save shutout in game four has Ottawa one win from their first trip to the second round since 2013. What is more, the Bruins have never come back from down 3-1 to win a series (0-22 all time). It was the fourth doughnut of Anderson's playoff career and the veteran improved to 9-2 with a .928 save percentage in his last 11 games overall against Boston.
Devan Dubnyk, Wild - Dubnyk is hardly to blame for Minnesota's first-round hole. He made 28 saves in game four to singlehandedly keep the Wild's season alive, logging the second shutout of his playoff career.
Erik Karlsson, the Senators' do-it-all defenceman, should win the Norris Trophy this year as the NHL's best blueliner. He has certainly been at his best in the playoffs and made another magician-like pass to Bobby Ryan to set up the only goal of Ottawa's game-four victory.
Thursday's game to watch
Game 4: Blackhawks at Predators - It has been difficult through the years to define Blackhawks-Predators as a division rivalry, considering Chicago's domination on the head-to-head playoff ledger. This time, though, Nashville are in command and would achieve some serious payback if they deal the Western Conference's top seed an embarrassing first-round sweep.
21. November 2017
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|Lampard excited by English clubs in Champions League|
|Kvitova ready for ´second career´ to start in 2018|
|Williams deny Kubica deal has been agreed|
|Thiago and Coman back for Bayern´s trip to Anderlecht|
|Prior launches second Lyon attack|
|Dybala hails Messi as ´our Maradona´, wants to play with Neymar|
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|Sherwood talks up Spurs as potential Champions League winners|
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|Klopp staying calm over Salah form|
|Irving leads Celtics to 16th straight win|
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|Griezmann: I don´t regret staying at Atletico|
|Rogers tells Paine to enjoy Ashes: It´s just a game!|
|Warner ready for first Ashes Test despite neck injury|
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|Guardiola dismisses Champions League favourites tag|
|Jackson excited about Gordon´s return: I get to open a new toy|
|Nuggets head coach Malone suspended for one game|
|Steelers OT Gilbert handed four-game PED suspension|
|Prior hits back at ´ridiculous´ claims as Lyon hopes Australia end careers|
20. November 2017
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|Navratilova leads tributes to ´amazing´ Novotna after her death at 49|
|Brighton and Hove Albion 2 Stoke City 2: Gross, Izquierdo extend home unbeaten run|
|Dimitrov braced for Australian Open expectations|
|Broncos fire offensive coordinator Mike McCoy|
|England won´t suffer Gabba ambush, Malan claims|
|Rose in contention to face Dortmund as Pochettino denies ´issue´ with defender|
|Benzema knows he can give more – Zidane|
|I´ve fulfilled my dreams already – Klopp has no plans to coach Barcelona|
|Memorable Ashes Moments: Unlikely saviour Agar falls agonisingly short|
|Wallabies coach Cheika faces investigation|
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|Aubameyang will face Tottenham, Bosz confirms|
|Klopp expects Matip to face Chelsea, Lallana return getting ´nearer´|
|Brown could return for England, Underhill out|
|Haye´s rematch with Bellew off due to bicep tear|
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|Gatland vows not to rise to New Zealand media barbs|
|Berizzo looking to former Red Aspas to provide lessons for Sevilla|
|Mangala ready to pounce, but realistic on Man City playing time|
|The Ashes: How the urn will be won - the case for Australia and England|
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|Trump calls for Lynch to be suspended as anthem row returns|
|Mendy injury means Aguero or Jesus for Guardiola|
|Kohli proud of India after almost snatching Kolkata win|
|The Ashes: Key contests in the battle for the urn|
|Guardiola sends ´big hug´ to ´amazing, so gentle´ Pulis|
|Tavecchio quits as head of FIGC, claims board have refused to resign|
|Benedetto facing Argentina World Cup KO with cruciate injury|
|Hansen hails All Blacks progress|
|Kohli´s record century precedes Bhuvneshwar heroics, but Sri Lanka cling on|
|Shape up! Heynckes reveals demand to Bayern star Vidal|
|Australia hope to open England ´scars´ in Brisbane|
|Smiling Broad sports bruise after golfing mishap|
|Ramos sits out Madrid trip to APOEL|
|West Brom sack Pulis after wretched run|
|Ball fighting fit ahead of Ashes opener at the Gabba|
|Murray should appoint Delgado as Lendl replacement - Henman|
|Former Wimbledon champion Novotna dies aged 49|
|Lloris wants Spurs to forget title and focus on top four|
|Pogba no Gerrard yet, says Benitez|
|Pearce released from Roosters contract|
|Expect to get six ducks – Paine reveals Rogers´ Ashes advice|
|Lyon: I don´t care if Stokes plays Ashes|