3:01 PM - Spencer Brown (Buf) (ankle) has been ruled out for Sunday's game against the Chiefs.

3:29 PM - Spencer Brown (Buf) (ankle) is listed as questionable ahead of Sunday's matchup against the Chiefs, Maddy Glab of the Bills' official site reports.

12:20 PM - Spencer Brown (Buf) (undisclosed) did not participate in Buffalo's walkthrough practice Wednesday, Katherine Fitzgerald of The Buffalo News reports.

4:20 PM - Spencer Brown (Buf) Bills and Brown agreed to a four-year extension Friday, Mike Garafolo of NFL Network reports.

10:12 PM - Spencer Brown (Buf) revealed Wednesday that he underwent offseason shoulder surgery but will be ready for the start of training camp next week, Ryan O'Halloran of The Buffalo News reports.

3:32 PM - Spencer Brown (Buf) (ankle) was listed as a full participant on the Bills injury report Thursday.

11:41 AM - Spencer Brown (Buf) (ankle) is inactive Week 9 against the Jets.

3:33 PM - Spencer Brown (Buf) (ankle) is questionable to play in Week 9 versus the Jets, Sal Capaccio of WGR Sports Radio 550 Buffalo reports.

3:12 PM - Spencer Brown (Buf) (ankle) was a limited participant during Wednesday's practice.

12:30 PM - Spencer Brown (Buf) (foot) has been ruled out for the Bills' Week 8 matchup with the Packers, Matt Parrino of The Syracuse Post-Standard reports.

6:21 PM - Spencer Brown (Buf) (foot) has been ruled out for the remainder of Sunday's game against Kansas City.

5:33 PM - Spencer Brown (Buf) (ankle) is questionable to return to Sunday's game against the Chiefs.

4:23 PM - Spencer Brown (Buf) (heat illness) did not appear on Buffalo's injury report Wednesday ahead of their Week 4 matchup at Baltimore.

3:32 PM - Spencer Brown (Buf) (heat illness) won't return to Sunday's game against the Dolphins, Alaina Getzenberg of ESPN.com reports.

11:09 PM - Spencer Brown (Buf) who underwent offseason surgery for an undisclosed issue, has returned to training camp and participated in some one-on-one drills this weekend, Grace Heidinger of the Bills' official site reports.

11:09 PM - Spencer Brown (Buf) who underwent offseason surgery for an undisclosed issue, has returned to training camp and participated in some one-on-one drills this weekend, Grace Heidinger of the Bills' official site reports.

3:56 PM - Spencer Brown (Buf) head coach Sean McDermott said Tuesday that Brown underwent an undisclosed procedure this offseason, Katherine Fitzgerald of the Buffalo News reports.

5:40 PM - Spencer Brown (Buf) was activated from the reserve/COVID-19 list Tuesday, Joe Buscaglia of The Athletic reports.

11:53 AM - Spencer Brown (Buf) was placed on the reserve/COVID-19 list Thursday.

5:14 PM - Spencer Brown (Buf) (back) practiced on a limited basis Wednesday.

1:59 PM - Spencer Brown (Buf) (back) has been ruled out for Sunday's game in Jacksonville, Chris of the Bills' official site reports.

6:43 PM - Spencer Brown (Buf) missed practice Wednesday due to a back injury.

11:43 AM - Spencer Brown (Buf) (back) is inactive for Sunday's contest against Miami.

3:31 PM - Spencer Brown (Buf) (back) is listed as doubtful for Sunday's game against the Dolphins.

3:27 PM - Spencer Brown (Buf) (back) missed practice for the second straight day Thursday.

4:49 PM - Spencer Brown (Buf) was able to practice on a full basis Thursday after being limited Wednesday due to a knee injury.

6:55 PM - Spencer Brown (Buf) was listed as limited Wednesday due to a knee injury.