The status for week one on Bills quarterback AJ McCarron and defensive tackle Kyle Williams is unknown.

Both McCarron and Williams were injured Friday, when the Bills took on Cleveland Browns in game two of preseason play.

Both sat out Sunday’s practice. McCarron has a shoulder injury and Williams has a knee injury.

Head Coach Sean McDermott said that McCarron is in “the process of receiving a second opinion”. However, it is unclear if McCarron will require any surgical procedures. “We’re still not totally conclusive on the results of the tests. We had some tests yesterday and we’re going to do some more.” McDermott said.

At this point, the Bills starting quarterback has yet to be announced. Although McDermott has a “pretty good feel for what AJ’s done to this point”,and that the Bills will “just take it one day at a time”.

“Overall, I think there are some plays, much like Josh (Allen) and AJ, that Nate (Peterman) would like back and there are some moments that he was spot on.” McDermott said. “There’s improvements to be made, growth to be had, and that’s why, as soon as he can get back on the field, we’ll see if that opportunity presents itself”.

On the status of Williams, McDermott said that he is week to week. “If Kyle can be out there, he’ll be out there.” McDermott added that he has a lot of confidence in Williams healing.

The Bills have two preseason games left in August before opening the season September 9th in Baltimore.