The Sharks have recalled forward Marcus Sorensen and defenseman Joakim Ryan from the AHL Barracuda, and reassigned forward Kevin Labanc and defenseman Tim Heed.
San Jose opens a four-game road trip in Buffalo on Tuesday. Neither Sorsensen or Ryan has ever played an NHL game.
In 39 games with the Barracuda, Sorensen has 27 points (13g, 14a) and a plus-15 rating. A 24-year-old former rookie of the year in the Swedish League in 2014-15, Sorensen was signed to a one-year contract as a free agent by the Sharks on May 16, 2016. Ottawa originally drafted him in the fourth round of the 2010 draft.
In training camp in September, Barracuda coach Roy Sommer compared him to a current Sharks forward and fellow Sweden native.
"He's a clone of the Swedes like [Melker Karlsson]. He plays a lot like him – hard, hounds pucks," Sommer said at the time.
Ryan, a seventh round pick in 2012, has 25 points (5g, 20a) in 39 games with the Barracuda, and a team-leading plus-17 rating. He is a 23-year-old native of Rumson, New Jersey.
Labanc, 21, has played 40 games with the Sharks, posting 14 points (7g, 7a). He has gone 16 games without a goal, though, and skated on the fourth line in the Sharks' most recent game against Arizona on Saturday.
Heed has been up and down of late as the Sharks' seventh defenseman while Dylan DeMelo recovers from a broken wrist. He has played in just one NHL game, on Jan. 11 in Calgary.
Joonas Donskoi's status remains in question, as the forward has missed eight of the last 11 games with a nagging upper body injury.