The Nashville Predators have signed forward Nino Niederreiter to a two-year, $8 million contract, the team announced Thursday.

The Predators needed to boost their offense even after signing Filip Forsberg to an eight-year extension earlier this month.

The Toronto Maple Leafs have signed forward Calle Jarnkrok to a four-year, $8.4 million contract, the team announced Friday.

The New Jersey Devils have signed former Tampa Bay Lightning winger Ondrej Palat, bringing a veteran Stanley Cup champion onto their young roster of forwards.

The Devils landed Palat on a five-year deal with an average annual value of $6 million, the team announced Thursday.

The Columbus Blue Jackets on Wednesday agreed to terms with star forward Johnny Gaudreau on a seven-year contract, the team announced, landing NHL free agency's biggest name in a stunning move.

Gaudreau's deal with the Blue Jackets is for $68.25 million, carrying an average annual value of $9.75 million against the NHL salary cap.

Goaltender Darcy Kuemper, who won the Stanley Cup with the Colorado Avalanche last month, has signed a five-year free agent contract with the Washington Capitals.

Kuemper, 32, agreed to a $26.25 million deal that carries an average annual value of $5.25 million against the salary cap.

The Dallas Stars signed forward Mason Marchment on Wednesday after his breakout season with the Florida Panthers, sources confirmed to ESPN.

Marchment, 27, signed a four-year deal with an average annual value of $4.5 million against the salary cap. 

The Pittsburgh Penguins on Wednesday signed free agent defenseman Jan Rutta to a three-year contract worth $8.25 million.

Rutta's deal carries an average annual value of $2.75 million.

Free agent forward Andre Burakovsky is joining the Seattle Kraken on a five-year contract worth $27.5 million.

The big winger is coming off a career-best regular season in which he scored 22 goals and 61 points in 80 games with the Colorado Avalanche.

The Detroit Red Wings signed veteran forward David Perron and defenseman Ben Chiarot as the team attempts to emerge from a multiseason rebuild.

Forward Johnny Gaudreau has told the Calgary Flames he will not re-sign with them, becoming the biggest name to hit the NHL free agent market that opens Wednesday.

Flames general manager Brad Treliving confirmed that Gaudreau's time with Calgary had come to an end. "It's a disappointing day to say the very least," he said. "I firmly believe there's nothing more we could have done."