2:41 PM - Tyson Kozak (Buf) (upper body) is expected to miss Saturday's game against Columbus, per Heather Engel of NHL.com.

2:19 PM - Tyson Kozak (Buf) (upper body) won't play against St. Louis on Monday, Lou Korac of The Hockey News reports.

6:44 PM - Tyson Kozak (Buf) (upper body) won't play Saturday versus the Bruins, Heather Engel of NHL.com reports.

2:25 PM - Tyson Kozak (Buf) (upper body) won't play against Ottawa on Tuesday, per Paul Hamilton of WGR Sports Radio 550.

5:16 PM - Tyson Kozak (Buf) (upper body) has been ruled out for Sunday's game against the Devils, Mike Morreale of NHL.com reports.

4:35 PM - Tyson Kozak (Buf) (upper body) won't play against the Islanders on Saturday, Paul Hamilton of WGR Sports Radio 550 reports.

1:46 PM - Tyson Kozak (Buf) (upper body) will be a game-time decision versus the Islanders on Saturday, Bill Hoppe of the Olean Times Herald reports.

6:40 PM - Tyson Kozak (Buf) is out of the lineup Friday versus the Jets and is reported dealing with an injury, Mike Harrington of The Buffalo News reports.

1:35 PM - Tyson Kozak (Buf) notched an assist in Monday's 5-1 win over the Oilers.

11:04 AM - Tyson Kozak (Buf) (lower body) is slated to return for Thursday's game against the Blues, Paul Hamilton of WGR Sports Radio 550 reports.

11:07 AM - Tyson Kozak (Buf) coach Lindy Ruff conveyed that he wouldn't rule Kozak (lower body) out for Thursday's home game versus the Blues, according to Paul Hamilton of WGR Sports Radio 550.

3:44 PM - Tyson Kozak (Buf) (lower body) was placed on injured reserve Saturday, Heather Engel of NHL.com reports.

8:31 PM - Tyson Kozak (Buf) (lower body) won't return to Friday's game versus the Maple Leafs.

1:57 PM - Tyson Kozak (Buf) scored a goal on two shots and added two hits in Monday's 4-2 loss to the Canadiens.

4:29 PM - Tyson Kozak (Buf) put pen to paper on a three-year, $2.325 million contract with Buffalo on Tuesday.

3:42 PM - Tyson Kozak (Buf) (hip) was sent to AHL Rochester on Friday, per Heather Engel of NHL.com.

12:00 PM - Tyson Kozak (Buf) is week-to-week with a hip strain, Mike Harrington of The Buffalo News reports Friday.

10:27 AM - Tyson Kozak (Buf) scored a goal and added an assist in Thursday's 7-3 win over the Penguins.

5:25 PM - Tyson Kozak (Buf) scored a power-play goal and added three hits in Sunday's 5-3 win over the Jets.

11:10 AM - Tyson Kozak (Buf) was called up from AHL Rochester on Friday.

10:06 AM - Tyson Kozak (Buf) was loaned to AHL Rochester on Sunday.

3:34 PM - Tyson Kozak (Buf) (illness) was activated from injured reserve Saturday, per the NHL media site.

12:20 PM - Tyson Kozak (Buf) (illness) will be a game-time call for Saturday's matchup with Nashville, Paul Hamilton of WGR Sports Radio 550 reports.

4:34 PM - Tyson Kozak (Buf) (illness) was placed on injured reserve Monday, per the NHL media site.

12:45 PM - Tyson Kozak (Buf) (illness) won't play versus the Devils on Sunday, according to Lance Lysowski of The Buffalo News.

2:49 PM - Tyson Kozak (Buf) was Bill Hoppe of the Olean Times Herald from AHL Rochester on Tuesday.

3:07 PM - Tyson Kozak (Buf) was reassigned to AHL Rochester on Saturday.

12:39 PM - Tyson Kozak (Buf) was recalled from AHL Rochester on Tuesday.

3:40 PM - Tyson Kozak (Buf) was assigned to AHL Rochester on Monday.

10:05 AM - Tyson Kozak (Buf) was recalled from AHL Rochester on Wednesday.

9:39 AM - Tyson Kozak (Buf) was reassigned to AHL Rochester on Tuesday.

6:30 PM - Tyson Kozak (Buf) will be called up from AHL Rochester ahead of Saturday's game versus the Islanders, Lance Lysowski of The Buffalo News

6:10 PM - Tyson Kozak (Buf) signed a three-year, entry-level contract with the Sabres on Friday.