Each week of the National Hockey League regular season, we will take a look at some of the most important injuries that have occurred in the last seven days, as well as key players that have returned from injury and updates on the conditions of other fantasy-relevant players (when applicable). Here is this week's batch:

1. Jeff Carter, C, Kings (ankle injury, IR)

The Kings are on a solid roll to begin the 2017-18 campaign, but they may run into trouble now that Carter is out indefinitely after sustaining a damaged tendon in his left ankle (he was cut by the skate of Montreal Canadiens defenseman Jeff Petry last week). With Carter out of action, the more defensive-minded Nick Shore has taken over second-line center duties. However, rookie Adrian Kempe may benefit the most from Carter's absence.

2. Leon Draisaitl, RW/C, Oilers (returning from a concussion)

The Oil have gotten off to a terrible start to 2017-18 amid expectations of a possible Stanley Cup finals appearance. The return of Draisaitl, their No. 2 scoring threat, should greatly help their chances of getting back on track. For now, the plan is for the big German to play wing again with Connor McDavid and Patrick Maroon--which would bump rookie winger Kailer Yamamoto off the top unit--though Draisaitl may go back to center.

3. Cam Fowler, D, Ducks (lower-body injury, IR)

Just as the Ducks were about to get back both Hampus Lindholm and Sami Vatanen from shoulder injuries, they lost their No. 1 defenseman for an indefinite period of time last week. Fowler was operating as the lone defenseman on Anaheim's top power-play unit, a job that may now go to Vatanen when he officially makes it back into the lineup. Lindholm, who may beat Vatanen back in uniform, could also be in the power-play mix.    

4. Cory Schneider, G, lower-body injury, IR)

The Devils have surprised many by getting out of the gate quickly and leading the way in the very competitive Metropolitan Division. However, things will almost surely get a lot tougher now that they have lost their starting netminder for at least a few weeks. Backup Keith Kinkaid will be responsible for keeping the Devils afloat while Schneider is out of action. Rookie Scott Wedgewood will take over backup duties but may see limited action.

5. Tuukka Rask, G, Bruins (concussion, out indefinitely)

While he has missed the past two games due to his concussion, Rask has started practicing with the rest of the Bruins again and may not miss much more time. That is a good thing because Boston badly needs Rask to play the majority of their games this season. Backup Anton Khudobin has been a decent fill-in during Rask's absence but the 31-year-old veteran is not a long-term answer. Zane McIntyre has already been sent back to the AHL.

6. Jaromir Jagr, RW, Flames (lower-body injury, IR)

Is Father Time FINALLY starting to get the best of the 45-year-old Jagr? Perhaps, though this latest injury may simply stem from his lack of an NHL training camp. Either way, the Flames will have to try yet another new right-winger for their No. 1 line alongside Sean Monahan and Johnny Gaudreau. Jagr seemed to be developing good chemistry with the Flames' top two forwards prior to going down last week. He may be back on Line 1 eventually.

7. Ryan Getzlaf, C, Ducks (returning from a lower-body injury)

While injuries continue to dominate the headlines in Orange County, at least the Ducks can count on the return of their captain and best player this week. Getzlaf has been limited to just two games so far in 2017-18 but, regardless, produced two assists while battling his persistent lower-body issue anyway. Anaheim will be happy to have him back, even though regular linemate Patrick Eaves is now out indefinitely (Guillain-Barre syndrome).  

8. Bobby Ryan, LW/RW, Senators (broken finger, out indefinitely)

The Senators' sniper has had terrible luck with hand injuries the last several seasons. Ryan is back on the shelf with yet another one, this time a broken finger that should sideline him indefinitely. He started off 2017-18 with six assists in his first eight games, so goals might be hard to come by for the 30-year-old veteran this campaign. Ottawa needs to find a temporary replacement for Ryan on the Derick Brassard-Mark Stone line combination.

9. Zach Parise, LW, Wild (back surgery, out indefinitely)

This is the worst-case scenario for veteran Parise, whose back woes may place a major damper on his 2017-18 campaign (not to mention the outlook of the entire Minnesota squad). At 33, Parise is in danger of declining rapidly if he cannot get his back to 100 per-cent health after going under the knife. His statistics were already down in 2016-17, so we might have already seen the best of Parise. Rookie Luke Kunin may get a long look.

10. Patrick Eaves, LW/RW, Ducks (Guillain-Barre syndrome, IR)

Another Duck down for the count, Eaves was recently diagnosed with Guillain-Barre syndrome, a nervous system disorder. The 33-year-old winger is determined to make a full recovery but it could take a bit longer than expected. Penciled in to play left wing with Ryan Getzlaf and Corey Perry this season, Eaves' replacement could be any of Andrew Cogliano, Nick Ritchie, Ondrej Kase or Chris Wagner. One of them will benefit from the move.