Utah keeps losing pieces, and poolers who count on the 
Mammoth are feeling it. Three important forwards are now hurt.
Guenther out two to four weeks
Dylan Guenther is on injured reserve with an upper-body injury. The Mammoth confirmed he will miss two to four weeks. It is a tough loss, the winger has 6 goals and 12 points in 18 games this season.
Guenther formed a strong pair with Logan Cooley on the top line. The two young forwards outplayed their opponents in their minutes together, with a 51.5 percent expected goals share.
Cooley day to day, Schmaltz questionable
Logan Cooley is out for now with an upper-body injury. Utah's leader with 11 goals and 21 points in 18 games missed Wednesday's game in Vegas and remains day to day.
Nick Schmaltz joined the list during Wednesday's game. He left in the second period after a hard hit into the boards and is dealing with a lower-body injury. He is questionable for Thursday's game against St. Louis.
Who steps up in Utah
Clayton Keller becomes the engine of the offense. He already leads the team with 24 points in 18 games, and he should get his longtime linemate Schmaltz back if Schmaltz can play. Anders Lee slides to the third line with Barrett Hayton, another name to watch with his 10 points in 18 games and a solid faceoff rate.
Daniil But was recalled from the AHL and skates on the top line with Keller and Schmaltz. The young forward has 4 points in 13 games with the Mammoth this season and could keep an interesting role while Guenther is out.
Nate Schmidt is also on injured reserve, but he could be activated as soon as Thursday. Kailer Yamamoto was activated off injured reserve.
What it means for your pool
Guenther belongs on your injured reserve if you have a free spot, he will be back in a few weeks. Check on Cooley and Schmaltz before Thursday's game against St. Louis. Keller gains even more value with so many teammates out, and Hayton is an interesting add in deeper pools.
Sources
The facts in this article come from Pro Hockey Rumors, the NHL status report and the NHL API player pages.