Canada Day was just a little sweeter in Toronto on Sunday.

While the city celebrated Canada's birthday, it collectively jumped for joy when John Tavares announced he'd elected to sign with his childhood favorite team, the Maple Leafs.

Jubilation swept across Twitter.

Some of his new teammates were over the moon.

Opposing teams have been put on alert.

For once, a Toronto boy is heading home.

The big question: Who centers the fourth line?

Toronto general manager Kyle Dubas gets the last laugh over his New York Islanders counterpart, ex-Leafs GM Lou Lamoriello.

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The Boston Bruins have inked free-agent blue-liner John Moore to a five-year contract worth $13.75 million, reports TSN's Frank Seravalli.

Moore, 27, has spent the last three seasons with the New Jersey Devils, notching seven goals and 11 assists in 81 games while averaging 20 minutes per night in 2017-18.

In 447 career games, Moore's recorded 99 points.

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John Tavares is coming home.

The superstar forward is signing a seven-year contract with the Toronto Maple Leafs at an average annual value of $11 million, the club confirmed Sunday.

"The island, the fans, the organization, (and) my teammates will always be special to me and my family but it's time to live my childhood dream here in Toronto," Tavares wrote in a statement on Twitter.

Here are his thoughts in full, in which the 27-year-old thanked the New York Islanders and their fans after spending the first nine years of his career with that organization.

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The Minnesota Wild signed forward J.T. Brown to a two-year, $1.375 million contract, the team announced Sunday.

Brown split the 2017-18 season between the Tampa Bay Lightning and the Anaheim Ducks, recording seven points in 47 games.

Brown has deep Minnesota roots. He hails from Burnsville, played his college hockey at the University of Minnesota Duluth, and now gets a chance to play for his hometown Wild.

He'll likely compete for a fourth-line role with the club.

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The Carolina Hurricanes have inked goaltender Petr Mrazek to a one-year, $1.5-million deal, the club announced Sunday.

Mrazek posted an .891 save percentage in 17 games with the Philadelphia Flyers this past season after being traded by the Detroit Red Wings, with whom he played parts of the last six campaigns.

He's set to take the place of Cam Ward, who agreed to a one-year contract with the Chicago Blackhawks on Sunday.

The 26-year-old was a fifth-round pick of Detroit in 2010.

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The Florida Panthers and restricted free agent Jared McCann have agreed to a two-year contract extension, the team announced Sunday.

McCann, a 2014 Vancouver Canucks first-rounder acquired by the Panthers via trade in 2016, is coming off his three-year entry-level deal. Financial details of the forward's new contract were not disclosed.

"Jared is a versatile two-way centerman who possesses excellent speed and suits our team well," Panthers general manager Dale Tallon said. "He has improved his game during his time with our organization and we look forward to him taking the next step in his development."

McCann, 22, recorded nine goals and 19 assists in 68 games last season. The 6-foot-1, 198-pounder has accumulated 19 goals and 34 assists through 166 career NHL games.

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The Arizona Coyotes have signed forward Michael Grabner to a three-year, $10.05-million contract, reports Sportsnet's Elliotte Friedman.

Though his offense plummeted between 2013 and 2016, Grabner experienced a resurgence after joining the New York Rangers for the 2016-17 season. He has since posted two consecutive 27-goal campaigns, including this past season, which he split between the Rangers and the New Jersey Devils.

The 30-year-old will join a Coyotes team that looks to be addressing its need for offense, having already acquired Alex Galchenyuk from the Montreal Canadiens.

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The Toronto Maple Leafs have signed forward Josh Jooris to a one-year, $650,000 contract, reports Sportsnet's Elliotte Friedman.

Jooris played in 40 games last season split between the Carolina Hurricanes and the Pittsburgh Penguins, tallying three goals and three assists.

The 27-year-old Burlington, Ontario native will likely serve as a depth forward for the Leafs.

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The Dallas Stars have officially brought back forward Valeri Nichushkin on a two-year contract worth $5.9 million, the club announced Sunday.

Dallas drafted Nichushkin 10th overall in 2013, but the 23-year-old has spent the last two seasons in the KHL with CSKA Moscow, recording 51 points in 86 games.

In his NHL career, the 6-foot-4 winger has notched 64 points in 166 contests.

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The Tampa Bay Lightning signed defenseman Ryan McDonagh to a seven-year, $47.25-million contract extension Sunday, the team announced.

He has one year remaining on his current six-year, $28.2-million contract. The new deal will keep the 29-year-old with the organization through the 2025-26 season.

McDonagh was acquired by the Lightning from the New York Rangers ahead of the trade deadline. In 63 games split between those clubs, he collected four goals and 29 points.

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