The Arizona Coyotes traded Mike Smith to the Calgary Flames on Saturday in exchange for fellow goaltender Chad Johnson, college defenseman Brandon Hickey and a conditional draft choice.

Smith, 35, was 19-26-9 with a 2.92 goals-against average and .914 save percentage in 55 starts with the Coyotes this past season. He has two years remaining on a six-year, $34 million contract.

Smith totaled a 128-132-41 record with a 2.69 GAA and a .916 save percentage in 312 career games with the Coyotes over six seasons.

Johnson, 31, posted an 18-15-1 record with a 2.59 goals-against average and a .910 save percentage with the Flames in 2016-17. He can become an unrestricted free agent on July 1.

The 21-year-old Hickey recorded four goals and 11 assists in 35 games as a junior with Boston University in 2016-17. He totaled 15 goals and 25 assists in 112 career games.

--The Buffalo Sabres acquired defenseman Nathan Beaulieu from the Montreal Canadiens.

The Canadiens will receive Buffalo's third-round pick (68th overall) in the 2017 NHL draft.

Beaulieu, 24, appeared in his fifth NHL season with the Canadiens in 2016-17, logging career highs in games played (74), goals (four), assists (24) and points (28).

In 225 career NHL regular-season games, the 6-foot-2, 205-pound Beaulieu owns 60 points (seven goals, 53 assists), adding four points in 17 career playoff games.

--The New Jersey Devils acquired defenseman Mirco Mueller in a trade with the San Jose Sharks.

The Sharks get a 2017 second-round (49th overall) and fourth-round (123rd overall) draft selection from the Devils in exchange for Mueller and a 2017 fifth-round (143rd overall) pick.

Mueller, 22, was with the Sharks' organization since being selected in the first round (18th overall) in the 2013 NHL draft. He spent the last three seasons splitting time with the Sharks and their American Hockey League affiliate.

Last season, Mueller appeared in four games with the Sharks, scoring one goal with an assist. He also skated in 62 games with the Barracuda, notching two goals and 18 assists and adding five assists in 15 Calder Cup playoff contests.

--The Dallas Stars signed defenseman Ludwig Bystrom to a one-year, two-way contract.

Bystrom, 22, registered 16 points (two goals, 14 assists) in 55 games for the Texas Stars of the American Hockey League during the 2016-17 season. In 132 career games for Texas, Bystrom accumulated 35 points (four goals, 31 assists), and he also appeared in four career AHL Calder Cup playoff contests without recording a point.