Allen is not warming up with Buffalo's quarterbacks and is unlikely to play during Sunday's preseason exhibition in Chicago, Alaina Getzenberg of ESPN.com reports.

Allen was throwing on the field during early pregame warmups, per Getzenberg, but he's not participating in his usual pregame throwing exercises with Buffalo's other quarterbacks. With their QB1 likely sidelined, No. 2 quarterback Mitchell Trubisky should be in line to start for the Bills against Chicago. The 29-year-old Allen signed a six-year, $330 million extension with the Bills this offseason, so it's unclear how much -- if at all -- he'll play during Buffalo's upcoming preseason finale against Tampa Bay on Saturday, Aug. 23.

Bills head coach Sean McDermott said Thursday that Allen will not suit up for Saturday's preseason opener against the Giants, Matt Parrino of The Syracuse Post-Standard reports.

Allen will rest Saturday while backup Mitchell Trubisky gets the start at quarterback, though McDermott said the rest of the starters will play roughly a quarter, per Maddy Glab of the Bills' official site. It remains to be seen how much action Allen, who signed a six-year, $330 million contract extension with Buffalo this offseason, will see in the team's two remaining preseason contests.

Hill (oblique) won't practice Thursday, Marcel Louis-Jacques of ESPN.com reports.

The report suggests that Hill, who has been managing an oblique injury, made a push to be on the field Thursday, but the Dolphins training staff is inclined to play it safe with the wideout in order to avoid a setback. With coach Mike McDaniel having indicated that at this stage he's not planning on using his starters this weekend, per Dante Collinelli of SI.com, Hill's next chance to see game action will occur Saturday, Aug. 23 against the Jaguars.

Dolphins coach Mike McDaniel said Wednesday that Hill (oblique) will participate in joint practices against the Lions but will continue to be monitored "so we can protect him against himself," Tom D'Angelo of the Palm Beach Post reports.

McDaniel said Hill and Jaylen Waddle (undisclosed), who will also return to practice Wednesday, both remain "day-to-day." It sounds like Hill's reps will be limited in some capacity, but it's encouraging to see him cleared to participate in joint practices. After his oblique injury forced him to sit out Miami's preseason opener against the Bears, Hill's next opportunity to log exhibition action will arrive Saturday on the road against Detroit.

Dolphins coach Mike McDaniel said Tuesday that Hill (oblique) is still day-to-day and that he's unsure whether the wide receiver will participate in joint practices this week with the Lions, C. Isaiah Smalls II of the Miami Herald reports.

McDaniel said the same of fellow starting wideout Jaylen Waddle (undisclosed), who like Hill sat out Sunday's preseason opener against the Bears. There haven't yet been any serious warning flags raised regarding the status of either Hill or Waddle for Week 1, but it's less than ideal for both of Miami's star receivers to be missing reps at this stage. One or both of them could still take part in the joint practices however, with McDaniel saying "they're definitely in the conversation," per David Furones of the South Florida Sun Sentinel.

Purdy completed five of seven pass attempts for 66 yards with no touchdowns or interceptions in a 22-19 exhibition win over the Raiders on Saturday.

Purdy is scheduled to play a series or two during Saturday's preseason matchup against the Raiders, Jennifer Lee Chan of NBC Sports Bay Area reports.

San Francisco head coach Kyle Shanahan said Thursday that he expects Purdy and "some" starters will suit up for Saturday's preseason game against the Raiders, Vic Tafur of The Athletic reports.

Brown (ankle/foot) won't play in Friday's preseason contest against the Seahawks, Nate Taylor of ESPN.com reports.

Brown (ankle/foot) appears slated to sit out Tuesday's practice, Pete Sweeney of ArrowheadPride.com reports.

Coach Andy Reid noted Monday that Brown (ankle/foot) is making "great progress" and has resumed running, Nate Taylor of ESPN.com reports.