Stars trade veteran defenseman, second-round pick to Penguins

Completing the deal will make the Stars cap-compliant for the 2025-26 season. Even if Dallas has Kolyachonok on its opening night roster, he costs the league minimum $775K against the cap.

That’s $2.975M less than Dumba’s $3.75M cap hit, since Pittsburgh takes on the totality of his salary with no retention on Dallas’ part. That savings puts Dallas, which is currently $1.79M above the upper limit, back under the cap.

The Stars signed Dumba to a two-year, $7.5M contract in free agency last summer, viewed as a risky commitment at the time after the 6-foot-1 righty had just 12 points and a -18 rating in 76 games with the Arizona Coyotes and Tampa Bay Lightning the year prior. The fears around the contract were quickly realized. Dumba, who turns 31 later this month, had negative possession impacts everywhere he was deployed and was out of the lineup entirely by the time the postseason rolled around.

Dumba played 63 games for the Stars last season, averaging just 15:18 per game with a 1-9–10 scoring line. He logged a minus-five rating in what amounted to his lowest usage since his rookie campaign and was a healthy scratch for all 18 playoff games.

The best years of Dumba’s NHL career came as a top-pairing piece for the Minnesota Wild, who drafted him No. 7 overall in 2012. He remained there through the beginning of his steep decline in the early 2020s, leaving for Arizona in 2023 in free agency on a one-year contract. After failing to re-establish his value there, he was flipped to the Lightning at the trade deadline for two late-round picks and finished out the year as a bottom-pairing piece in Tampa Bay before signing in Dallas in the offseason.

Dumba’s best season came back in 2017-18 as a 23-year-old, when he finished 19th in the league in scoring among defensemen with 50 points in 82 games and tied for 10th with 14 goals. He also had 12 goals and 22 points in just 32 games the following year before an upper-body injury ended his season. His offensive production never recovered, averaging just 22.4 points per 82 games since returning.

It’s unclear if Dumba will have much of a role in Pittsburgh’s lineup next season. They have three right-shot defenders ahead of him on the depth chart in Connor Clifton, Erik Karlsson and Kris Letang, although Karlsson is well-known trade bait this summer. If he remains in the picture, though, Dumba could start the season in the press box — or even on waivers and buried in the minors — unless someone shifts to their offside.

Dumba’s price tag is exceedingly steep for the No. 6/7/8 defender he is at this stage of his career, one Dallas simply couldn’t afford to shoulder with their cap crunch after extending Mikko Rantanen and retaining UFAs Jamie Benn and Matt Duchene. It parts with a second-round pick to wipe his deal off the books one year early — a steep price considering the market for cap dumps this summer, although the Stars do well in acquiring a serviceable depth piece in Kolyachonok. They’re now without a pick before the third round in 2028.

The Penguins already had a bit of a crunch among depth defensemen after signing Alexander Alexeyev, Caleb Jones and Parker Wotherspoon in free agency. It isn’t surprising to see them unwilling to take on a defenseman without moving one out.

They picked up Kolyachonok, a 24-year-old 6-foot-2 lefty with some untapped two-way potential, off waivers from Utah in February last season. He didn’t get into much game action, though, recording two assists and a minus-five rating in 12 appearances while averaging 14:20 per game. There wasn’t going to be much opportunity for him in Pittsburgh with their aforementioned additions and younger, higher-profile names like Owen Pickering pushing for more NHL ice time.

Kolyachonok, a second-rounder in 2019, has 14 points in 74 career NHL games with a minus-seven rating and 72 hits. He’ll presumably compete with veteran Alexander Petrovic to exit training camp as the extra defenseman on the NHL roster.

Sean Shapiro of DLLS Sports was first to report the Stars and Penguins were working on a trade centered around Dumba and Kolyachonok.