8:47 AM - Casey Mittelstadt (Buf) supplied a power-play goal and an assist in Saturday's 7-2 win over the Golden Knights.

9:38 AM - Casey Mittelstadt (Buf) scored the game-winning goal and added two assists, one on the power play, in Monday's 3-0 win over the Sharks.

10:14 AM - Casey Mittelstadt (Buf) notched two assists in Tuesday's 5-2 loss to the Kraken.

6:38 PM - Casey Mittelstadt (Buf) (upper body) is expected to play in Thursday's season opener versus the Rangers, Lance Lysowski of The Buffalo News reports.

1:47 PM - Casey Mittelstadt (Buf) (upper body) is consider day-to-day after sitting out practice Tuesday, according to Heather Engel of NHL.com.

9:54 AM - Casey Mittelstadt (Buf) scored the game-winning goal and added an assist in Thursday's 4-3 overtime win over the Senators.

9:22 AM - Casey Mittelstadt (Buf) scored his 13th goal of the season in Monday's 3-2 shootout win over the Rangers.

4:39 PM - Casey Mittelstadt (Buf) scored two goals in Saturday's 4-3 win over the Hurricanes.

10:03 AM - Casey Mittelstadt (Buf) notched two assists in Friday's 3-2 overtime win over the Rangers.

11:16 AM - Casey Mittelstadt (Buf) picked up two power-play assists in Friday's 5-2 loss to the Flyers.

9:00 AM - Casey Mittelstadt (Buf) supplied the only offense for Buffalo in Thursday's 7-1 loss to the Bruins with a goal in the third period.

11:48 AM - Casey Mittelstadt (Buf) scored a power-play goal Saturday in a 5-3 loss to Tampa Bay.

10:49 PM - Casey Mittelstadt (Buf) recorded a power-play assist, two shots on goal and a minus-2 rating in Monday's 8-3 win over the Red Wings.

10:37 AM - Casey Mittelstadt (Buf) notched two power-play assists in Sunday's 5-3 loss to the Panthers.

11:53 PM - Casey Mittelstadt (Buf) posted an assist and three shots on goal in Monday's 6-5 win over the Blackhawks.

8:35 AM - Casey Mittelstadt (Buf) picked up two assists, one on the power play, in Sunday's 5-4 overtime loss to the Rangers.

10:32 AM - Casey Mittelstadt (Buf) scored a goal and an assist, both on the power play, in Friday's 5-4 win over the Wild.

12:19 PM - Casey Mittelstadt (Buf) (upper body) will return to the lineup Saturday versus the Avalanche, John Vogl of The Athletic reports.

4:25 PM - Casey Mittelstadt (Buf) (upper body) will not play against the Senators on Thursday, Bill Hoppe of the Olean Times Herald reports.

11:34 AM - Casey Mittelstadt (Buf) (upper body) is a game-time call for Thursday's contest against Ottawa, Mike Harrington of The Buffalo News reports.

1:40 PM - Casey Mittelstadt (Buf) (upper body) is slated to miss out versus the Senators on Thursday. Coach Don Granato told reporters, "No chance in my mind that he'll be in tomorrow," per Paul Hamilton of WGR Sports Radio 550.

11:11 AM - Casey Mittelstadt (Buf) (upper body) will not play in Tuesday's tilt versus the Islanders, Lance Lysowski of The Buffalo News.

12:32 PM - Casey Mittelstadt (Buf) (upper body) will not participate in Sunday's contest against Montreal, Bill Hoppe of the Olean Times Herald reports Saturday.

11:43 AM - Casey Mittelstadt (Buf) (upper body) was a full participant at Friday's practice, Bill Hoppe of the Olean Times Herald reports.

2:17 PM - Casey Mittelstadt (Buf) (upper body) was ruled a week-to-week decision on Tuesday.

3:09 PM - Casey Mittelstadt (Buf) is dealing with a recurrence of the upper-body injury that required surgery back in early December and will be meeting with his surgeon, Lance Lysowski of The Buffalo News reports.

11:12 PM - Casey Mittelstadt (Buf) (undisclosed) left Sunday's game against the Avalanche and did not return, Lance Lysowski of The Buffalo News reports.

12:23 PM - Casey Mittelstadt (Buf) (upper body), as expected, will be in action against Ottawa on Tuesday, John Vogl of The Athletic reports.

12:20 PM - Casey Mittelstadt (Buf) (upper body) is likely to participate Tuesday in Ottawa, Paul Hamilton of WGR Sports Radio 550 reports.

1:03 PM - Casey Mittelstadt (Buf) (upper body) was listed as day-to-day on the Sabres' injury report and according to coach Don Granato, the team hopes to have the center back within the next 2-3 games, Lance Lysowski of The Buffalo News reports.

11:58 AM - Casey Mittelstadt (Buf) (upper body) had successful surgery Friday.

12:57 PM - Casey Mittelstadt (Buf) (upper body) will be seeing a specialist Thursday regarding his injury in the hopes of giving the team a clearer picture of his recovery timeframe, Lance Lysowski of The Buffalo News reports.

10:48 PM - Casey Mittelstadt (Buf) (upper body) was placed on injured reserve Wednesday, per CapFriendly.

1:04 PM - Casey Mittelstadt (Buf) is set to undergo additional testing to determine if the injury he suffered during Tuesday's loss to Anaheim is the same upper-body injury that kept him sidelined for 21 games earlier this season, Mike Harrington of The Buffalo News reports.

10:25 PM - Casey Mittelstadt (Buf) (undisclosed) was injured in Tuesday's game versus the Ducks, Lance Lysowski of The Buffalo News reports.

4:11 PM - Casey Mittelstadt (Buf) (upper body) was removed from injured reserve Thursday.

3:01 PM - Casey Mittelstadt (Buf) (upper body) will be activated off injured reserve and return to the lineup for Thursday's game against the Panthers, Lance Lysowski of The Buffalo News reports.

12:55 PM - Casey Mittelstadt (Buf) (upper body) will travel with the team for its upcoming two-game road trip and could play either Thursday or Saturday against the Panthers or Hurricanes, respectively, Mike Harrington of The Buffalo News reports.

11:00 AM - Casey Mittelstadt (Buf) (upper body) was on the ice for Wednesday's game-day skate in a non-contact sweater, Mike Harrington of The Buffalo News reports.

1:09 PM - Casey Mittelstadt (Buf) (upper body) remains without a definite timetable for his return to action, Lance Lysowski of The Buffalo News reports.

1:10 PM - Casey Mittelstadt (Buf) (upper body) won't join the Sabres for their upcoming four-game road trip, Paul Hamilton of WGR Sports Radio 550 reports.

8:53 PM - Casey Mittelstadt (Buf) (upper body) was placed on injured reserve Wednesday, per CapFriendly.

1:24 PM - Casey Mittelstadt (Buf) coach Don Granato said Mittelstadt (upper body) will be out for at least a couple weeks.

8:58 PM - Casey Mittelstadt (Buf) (upper body) won't return to Thursday's game versus the Canadiens.

10:03 AM - Casey Mittelstadt (Buf) penned a three-year, $7.5 million contract with Buffalo on Thursday.

10:39 PM - Casey Mittelstadt (Buf) produced a power-play assist and went minus-3 in Sunday's 6-3 loss to the Rangers.

10:27 PM - Casey Mittelstadt (Buf) scored a short-handed goal on four shots in a 5-2 win over the Capitals on Thursday.

10:54 PM - Casey Mittelstadt (Buf) scored a power-play goal and added an assist at even strength in Tuesday's 5-3 win over New Jersey.

10:50 PM - Casey Mittelstadt (Buf) scored a goal on his only shot in Saturday's 3-2 shootout victory over the Rangers.

11:50 PM - Casey Mittelstadt (Buf) scored a goal on two shots Wednesday in a 6-1 win over the Sabres.

10:29 AM - Casey Mittelstadt (Buf) was promoted to the active roster Sunday.

3:44 PM - Casey Mittelstadt (Buf) was demoted to Buffalo's taxi squad Tuesday.

7:17 PM - Casey Mittelstadt (Buf) was added to the active roster and will play in Thursday's game against New Jersey, per CBS Sports.

8:51 PM - Casey Mittelstadt (Buf) was reassigned to the taxi squad Wednesday, per CapFriendly.

5:59 PM - Casey Mittelstadt (Buf) was promoted from the taxi squad ahead of Monday's game versus the Islanders, Mike Harrington of The Buffalo News reports.

6:04 PM - Casey Mittelstadt (Buf) Sabres placed Mittelstadt on the taxi squad Thursday, per CapFriendly.

5:24 PM - Casey Mittelstadt (Buf) has been activated off the NHL's COVID-19 protocols list, Heather Engel of NHL.com reports.

11:18 AM - Casey Mittelstadt (Buf) Sabres added Mittelstadt to the active roster via the taxi squad Sunday.

11:36 AM - Casey Mittelstadt (Buf) Sabres loaned Mittelstadt to their taxi squad Tuesday.

12:21 PM - Casey Mittelstadt (Buf) Sabres promoted Mittelstadt to the active roster Sunday.

11:22 AM - Casey Mittelstadt (Buf) has been assigned to Buffalo's taxi squad.

5:24 PM - Casey Mittelstadt (Buf) signed a one-year, $874,125 contract with the Sabres on Wednesday.

3:12 PM - Casey Mittelstadt (Buf) scored his eighth goal of the season in AHL Rochester's 3-2 shootout loss to Utica on Wednesday.

3:44 PM - Casey Mittelstadt (Buf) has just one point in five games with AHL Rochester.

5:05 PM - Casey Mittelstadt (Buf) was demoted to AHL Rochester on Sunday.

6:53 PM - Casey Mittelstadt (Buf) is in the midst of an 11-game point drought.

10:21 PM - Casey Mittelstadt (Buf) registered two assists and two shots on goal in Buffalo's 3-1 win versus the Penguins on Thursday.

4:52 PM - Casey Mittelstadt (Buf) coming off a somewhat disappointing season where he had just 12 goals and 13 assists in 77 games while mostly serving as the second-line center, has been a workout fanatic this offseason and showed up at a recent team event noticeably bigger and stronger. "Casey, just seeing him here today, I think he's taken a big step," said general manager Jason Botterill. "We challenged him a little bit about some of his conditioning in the summer. I think he's really done that extremely well. I think it's always that first or second year, that's where good players take that jump."

1:21 PM - Casey Mittelstadt (Buf) will not be participating in the World Championship, Paul Hamilton of WGR Sports Radio 550 reports.

11:10 PM - Casey Mittelstadt (Buf) scored a goal and added an assist in Thursday's 5-4 overtime loss to Detroit.

6:56 PM - Casey Mittelstadt (Buf) a healthy scratch for Monday's loss in New Jersey, will return to action Tuesday in Otttawa, Lance Lysowski of The Buffalo News reports.

4:28 PM - Casey Mittelstadt (Buf) buried a power-play goal in Wednesday's loss to Toronto.

10:41 PM - Casey Mittelstadt (Buf) scored a goal on five shots in a 4-3 loss to the Oilers on Monday.

5:04 PM - Casey Mittelstadt (Buf) (undisclosed) will return to the lineup for Tuesday's game against Philadelphia, Paul Hamilton of WGR Sports Radio 550 reports.

6:55 PM - Casey Mittelstadt (Buf) (undisclosed) will not dress in Monday's road game versus Toronto.

12:47 PM - Casey Mittelstadt (Buf) has been scratched from Saturday's lineup against the Capitals due to injury, John Vogl of The Athletic reports.

5:39 PM - Casey Mittelstadt (Buf) (lower body) will return to the lineup Sunday in New Jersey, Mike Harrington of The Buffalo News reports.

11:52 AM - Casey Mittelstadt (Buf) (lower body) remains day-to-day and will be unavailable versus New York on Friday.

12:51 PM - Casey Mittelstadt (Buf) (lower body) will have a decision made Friday regarding his status for Friday's matchup with the Rangers.

6:33 PM - Casey Mittelstadt (Buf) (lower body) won't suit up for Tuesday's game versus the Islanders, John Vogl of The Athletic reports.

11:58 AM - Casey Mittelstadt (Buf) (lower body) will be a game-time decision for Tuesday's game against the Islanders, Paul Hamilton of WGR Sports Radio 550 reports.

4:50 PM - Casey Mittelstadt (Buf) scored a power-play goal in Saturday's 3-1 win over the Red Wings.

1:31 PM - Casey Mittelstadt (Buf) is learning the importance of patience, Lance Lysowski of the Buffalo News reports.

6:19 PM - Casey Mittelstadt (Buf) tallied an assist in Monday's loss to the Islanders.

4:07 PM - Casey Mittelstadt (Buf) got his name on the scoresheet in Monday's win over Pittsburgh.

6:26 AM - Casey Mittelstadt (Buf) received 14:03 of ice time in Thursday's 4-0 home loss to the Bruins, coming up empty on his lone shot attempt.

12:48 PM - Casey Mittelstadt (Buf) is still looking to get his first point of the preseason after being held off the scoresheet in his previous two contests.

10:18 PM - Casey Mittelstadt (Buf) the team's first-round pick in 2017 who made his NHL debut last season, was noticeably bigger while appearing in development camp last week, Jack Goods of The Buffalo News reports. "I've definitely been working on training, that's the most important," Mittelstadt said "Get in the weight room, stuff like that. Get to July, I'll start ramping up the skating a lot more. Definitely working on my shot."

11:43 PM - Casey Mittelstadt (Buf) is suffering from a groin injury and won't be able to play for Team USA at the upcoming World Championship in Denmark, Mike Harrington of The Buffalo News reports.

10:17 AM - Casey Mittelstadt (Buf) scored his first NHL goal in Friday's loss to the Lightning.

10:41 AM - Casey Mittelstadt (Buf) his NHL debut on Thursday, Mittelstadt picked up an assist in Buffalo's 6-3 loss to Detroit.

7:22 AM - Casey Mittelstadt (Buf) a preview ahead of Thursday's debut against Detroit, Mittelstadt skated on the second line during the morning skate Wednesday.