After the Buffalo Bills fell to the Baltimore Ravens on Sunday, the Los Angeles Chargers weren't sure who they would be facing at quarterback.

That all changed Wednesday morning when Bills Head Coach Sean McDermott announced rookie Josh Allen would get the nod under center citing "it was the right move for our team."

Allen relieved Nathan Peterman and entered the game early in the third quarter last week. Peterman faced the Bolts in Week 11 last season, finishing the game six-of-14 for 66 yards with five interceptions and a 17.9 quarterback rating.

Although he didn't acknowledge if last year's game played any role in the QB switch for this week, McDermott did learn from that experience and knows the Bolts will be champing at the bit as they are hungry for their first win on Sunday.

"It didn't go very well," he said. "Give credit to the Chargers. They beat us pretty convincingly last year and credit to them. We've got work to do as a football team. The first thing we've got to do is focus on ourselves and get ourselves right, and then certainly spend time focusing on a good football team. I know they're pegged to win the division and potentially go to the Super Bowl, so I know there's high expectations out there."

Allen finished the game last week going six-of-15 for 74 yards. While he did take care of the football, he was also sacked three times. McDermott acknowledged the Chargers defense is one to be wary of with what they can do both up front and on the back end, and knows it'll be a good test for the rookie.

"They fly around, they play fast," he said. "It's a good scheme that they've got in (Defensive Coordinator Gus) Bradley up there and they've had a lot of success. They do a good job…. (The secondary is) a talented group. They do a good job and I thought they played well last week against Kansas City.  We'll just have to be on our A-game."