The 25-year-old was named to the All-NHL second team (alongside the likes of Sidney Crosby) at the league's awards show earlier this week after amassing 31 goals and 43 assists this season.
FILE - At left, in an October 14, 2016, file photo, Chicago Blackhawks left wing Artemi Panarin (72), of Russian Federation, plays against the Nashville Predators during the second period of an NHL hockey game, in Nashville, Tenn. The Arizona Coyotes have acquired Hjalmarsson in a trade with the Blackhawks. "I mean obviously we didn't know until we began negotiating where they were going to be", Blackhawks general manager Stan Bowman said. The deal was announced less than an hour after Hjalmarsson was traded to Arizona for defenceman Connor Murphy and forward Laurent Dauphin.
Bowman traded forwards Panarin and Tyler Motte and Chicago's sixth-round selection in this weekend's National Hockey League draft to Columbus for Saad, goaltender Anton Forsberg and a fifth-round draft pick next year.
"I certainly like the fact that we're getting younger", Bowman said.
The Chicago Blackhawks have reacquired forward Brandon Saad from the Columbus Blue Jackets two years after trading him to the team, sending forward Artemi Panarin to Columbus in exchange.
Could Chicago deal Marian Hossa's contract?
Hjalmarsson has spent his entire 10-year career in Chicago and was part of three Stanley Cup winners during that time. It also creates valuable cap space for the Blackhawks.
In two seasons with the Blackhawks, Saad scored 55 goals in 160 games.
Stepan, 27, is fresh off a 17-goal, 55 point season and has four seasons left on a deal that carries a $6.5 million U.S. salary cap hit. Originally a second round pick by the Blackhawks, Saad has 107 goals and 125 assists in 368 career games, split between the Blackhawks and Blue Jackets.