Kirk Cousins, right, prepares to make a throw in practice as Rex Grossman, left, and Pat White stand by. (John McDonnell/The Washington Post)

The Washington Redskins’ starter at quarterback, Robert Griffin III, is being withheld from the entire preseason as he works his way back from knee surgery in January. His top backup, Kirk Cousins, is likely to be sidelined this weekend by a sprained foot, probably leaving third-stringer Rex Grossman and fourth-teamer Pat White to split the playing time in Saturday’s preseason game against the Buffalo Bills.

But the preseason quarterback shuffling shouldn’t be overly disruptive to the Redskins’ offense once the regular season arrives, according to wide receiver Pierre Garcon.

“It’s not disruptive,” Garcon said. “It’s just part of football. Guys get injured. Offensive linemen get injured. Receivers get injured. Guys get in there and you just have to move on to the next person. We all practice hard. We all work hard to be prepared for whenever our number is called. It’s part of the game. It’s part of life. So you just have to go with the flow.”

Garcon said he believes Griffin will be able to step in and play well in the regular season even without playing in the preseason.

“You can definitely accomplish that,” Garcon said. “It’s hard to not get game reps. But we practice like a game. So those reps are very important and we have to take them seriously because those are the most live reps that he’s gonna get. It’s hard. It’s a lot of pressure. But he’ll be able to get past it.”

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What’s ahead:

● A post on renovations at Redskins Park.

● Thursday’s practice is at 1 p.m. Defensive coordinator Jim Haslett speaks afterward.

More on the Redskins and NFL:

Redskins regard Bills as good warm-up for opener

Starters might see less time than usual in third preseason game

Reid: Griffin must shoulder some responsibility for staying healthy

Griffin at peace with process after latest knee exam

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