Lassi Thomson - NHL News & Rumors

Signs with Swiss team Thomson signed a two-year contract with HC Lugano of Switzerland's National League on Friday.

Impact Thomson had three assists, 11 shots on goal, nine blocked shots and six hits across 11 NHL appearances in the 2025-26 regular season. He also had 14 goals and 25 points in 55 regular-season games for AHL Belleville. Thomson was a Group 6 unrestricted free agent after completing his one-year, $775,000 contract with the Senators.

MAY 9 • ROTOWIRE

Lassi Thomson Pregame Media vs TOR | Ottawa Senators Hear from defenceman Lassi Thomson ahead of the Senators game against the Toronto Maple Leafs at Canadian Tire Centre.

APRIL 15 • NHL.COM

Lassi Thomson, Cameron Crotty, Nikolas Matinpalo, Travis Green Pregame Media vs TOR

APRIL 15 • YOUTUBE

Snags helper in loss Thomson notched an assist and went plus-2 in Tuesday's 6-3 loss to the Panthers.

Impact Thomson missed two games due to a lower-body injury in March, but he's been back in the lineup for the last two contests. The 25-year-old blueliner is getting a chance to play because the Senators' defense is ravaged by injuries. Thomson's helper was his first since the 2021-22 campaign, when he logged five assists over 16 appearances. He's likely to remain in a third-pairing role for as long as he's in the lineup.

APRIL 1 • ROTOWIRE

Good to return Saturday Thomson (lower body) is expected to play against Tampa Bay on Saturday.

Impact Following a two-game absence, Thomson will skate alongside Carter Yakemchuk on Ottawa's third pairing against the Lightning on Saturday. During his NHL season debut, the 25-year-old Thomson had two shots on goal in 4:25 of ice time against the Rangers on March 23 before getting hurt.

MARCH 28 • ROTOWIRE

Carter Yakemchuk scores in NHL debut as streaking Senators top Red Wings, 3-2

Carter Yakemchuk scored a second-period goal and also had an assist in his NHL debut as the streaking Ottawa Senators edged the Detroit Red Wings 3-2

MARCH 25 • Associated Press

Down to 4 defensemen, Senators hold the Rangers to the fewest shots by an NHL team since 2015

The Ottawa Senators held the New York Rangers to a record-low 10 shots on goal in a 2-1 win — even after losing two players left because of injury

MARCH 24 • Associated Press

Dealt tough hand in return to NHL Head coach Travis Green stated after Monday's 2-1 win over the Rangers that Thomson (lower body) will be out for a while, according to Julian McKenzie of The Athletic.

Impact Making his first appearance in the NHL since the 2022-23 campaign, Thomson logged two shots in just 4:25 of ice time before being unable to finish Monday's contest. Thomas Chabot (right arm) is also set for an absence, leaving the Senators extremely shorthanded ahead of a crucial divisional matchup in Detroit on Tuesday. Green said that two defensemen will be elevated from Ottawa's minor-league affiliate ahead of the team's second half of a back-to-back.

MARCH 24 • ROTOWIRE

Senators boost their playoff push by beating the Rangers 2-1

Shane Pinto scored on the power play, Warren Foegele added his fifth goal in nine games since being traded and the Ottawa Senators made up more ground in their chase to make the pl...

MARCH 24 • Associated Press

Exits early Monday Thomson (lower body) has been ruled out for the remainder of Monday's road clash against the Rangers.

Impact Thomson left Monday's game midway through the second period. He was the second blueliner for Ottawa to depart the contest, as Thomas Chabot left the game late in the first period due to an injury to his right arm. With the Senators playing the second half of a back-to-back Tuesday, Thomson will likely carry the questionable tag until further information is provided. If he can't go Tuesday, the Senators will likely weigh the option of calling up the 20-year-old defenseman Carter Yakemchuk, who is one of the top prospects in their minor-league system.

MARCH 24 • ROTOWIRE

Lassi Thomson Draws in For Monday Night tilt in NY | Ottawa Senators Lassi Thomson is set to draw into the Sens lineup tonight against the New York Rangers for his first game since 2022. Jackson Starr breaks d...

MARCH 23 • NHL.COM

Lassi Thomson, Claude Giroux, Brady Tkachuk, Travis Green Pregame Media vs TOR

MARCH 23 • YOUTUBE

Lassi Thomson Pregame Media vs NYR | Ottawa Senators Hear from defenceman Lassi Thomson as he speaks to the media ahead of the Ottawa Senators game against the New York Rangers at Madison Squar...

MARCH 23 • NHL.COM

One weekend, two games, seven defenders | Ottawa Senators Lassi Thomson recalled from Belleville

MARCH 14 • NHL.COM

Called up from AHL Thomson was summoned from AHL Belleville on Saturday.

Impact The Senators are hurting on the blue line with Jake Sanderson out of action with an upper-body injury and Nick Jensen (lower body) questionable for Saturday's tilt versus Anaheim. Thomson has spent the entire season at AHL Belleville, tallying 14 goals and 11 assists across 55 games. If Jensen is unable to play, Thomson could make his first NHL start since the 2022-23 campaign, likely replacing Dennis Gilbert on the third pairing.

MARCH 14 • ROTOWIRE

Nets two goals Sunday Thomson scored two goals in AHL Belleville's 6-5 overtime loss to Rochester on Sunday.

Impact Thomson had gone four games without a point and six contests without a goal entering Sunday. He's now at nine goals and 15 points through 35 outings this season. Thomson had a call-up to Ottawa earlier in the season but didn't make an appearance, and he hasn't exactly impressed in his AHL time so far.

JANUARY 11 • ROTOWIRE

Sent to AHL Thomson was reassigned to AHL Belleville on Saturday.

Impact Thomson was a healthy scratch Thursday, after he was recalled Tuesday. The 25-year-old has played 18 career games in the NHL, the last one coming during the 2022-23 campaign.

NOVEMBER 22, 2025 • ROTOWIRE

Elevated from minors Thomson was brought up from AHL Belleville on Tuesday.

Impact Thomson will provide the Senators with some extra defensive depth as they depart on a seven-game road trip. Over the course of his career, the 25-year-old defenseman has logged 18 NHL games but hasn't featured for the club since 2022-23, when he got into two games for Ottawa.

NOVEMBER 18, 2025 • ROTOWIRE

On waivers for AHL assignment Thomson was placed on waivers by the Senators for the purpose of assignment to the AHL, the team announced Sunday.

Impact Thomson joined the Senators this offseason after spending the last year in Finland. He will begin his second North American stint in the AHL with Belleville, the team that he spent the entirety of the 2023-24 season with. During that season, the 25-year-old notched 21 points in 67 games.

OCTOBER 5, 2025 • ROTOWIRE

Headed back to North America Thomson signed a one-year, two-way contract with the Senators to return to North America, the team announced Sunday.

Impact Thomson spent last season in the SHL with Malmo, scoring 17 goals and adding 12 assists in 50 games, but is now on his way back to North America. The 24-year-old has played 18 games in the NHL with five assists to his name, but none since the 2022-23 season. The 2019 first-round pick will look to crack a crowded Senators blue line with six players already under contract, not including him.

JUNE 15, 2025 • ROTOWIRE

Signs with SHL team Thomson has signed a contract with with the Malmo Redhawks of the SHL.

Impact Thomson wasn't able to catch on with the Senators after being drafted by the team with the 19th overall pick in the 2019 Draft -- he appeared in 18 games with Ottawa from 2021-23, picking up five helpers and a minus-10 rating over that span, but he didn't see any action with the big club in 2023-24, instead spending the entirety of the campaign with AHL Belleville, picking up 21 points in 67 contests. As a restricted free agent, the Senators still own Thomson's NHL rights, so they'll get the first crack at signing him if he returns to North America in the future.

MAY 14, 2024 • ROTOWIRE

Reclaimed by Ottawa Ottawa claimed Thomson off waivers from Anaheim on Monday and he will be assigned to AHL Belleville, according to Murray Pam of Full Press Hockey,

Impact Thomson doesn't have to clear waivers again after being reclaimed by the Senators. The Ducks claimed Thomson off waivers from the Senators on Oct. 1 before putting him on the waiver wire Sunday. The 23-year-old blueliner recorded seven goals and 33 points in 56 contests with AHL Belleville during the 2022-23 campaign.

OCTOBER 9, 2023 • ROTOWIRE

Waived again Thomson was waived by Anaheim on Sunday, Elliotte Friedman of Sportsnet reports.

Impact Thomson was claimed off waivers by the Ducks earlier this month but will hit waivers again. The 23-year-old has appeared in just 18 NHL games since being taken in the first round of the 2019 NHL Entry Draft.

OCTOBER 8, 2023 • ROTOWIRE

Claimed off waivers Anaheim claimed Thomson off waivers from Ottawa on Sunday, Elliotte Friedman of Sportsnet reports.

Impact Thomson, who was the No. 19 pick in the 2019 NHL Entry Draft, has registered five assists in 18 appearances with Ottawa over the past two seasons. He also had seven goals and 33 points in 56 contests with AHL Belleville in 2022-23. Thomson will compete for a depth spot on the Anaheim blue line going into this season.

OCTOBER 1, 2023 • ROTOWIRE

Lands on waivers Thomson was waived by the Senators on Friday, Bruce Garrioch of the Ottawa Sun reports.

Impact Thomson dressed in two games for Ottawa last year but scored 33 points in 56 AHL contests. The 2019 first-round draft pick has just five assists in 18 career NHL appearances.

SEPTEMBER 30, 2023 • ROTOWIRE

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Carter Yakemchuk scores in NHL debut as streaking Senators top Red Wings, 3-2

Down to 4 defensemen, Senators hold the Rangers to the fewest shots by an NHL team since 2015

Senators boost their playoff push by beating the Rangers 2-1