The Washington Redskins will be without starting strong safety Brandon Meriweather for a fourth game Sunday, but wide receiver Pierre Garcon, who was injured just eight plays into the season, and left tackle Trent Williams, who suffered a bone bruise in his right knee in last week’s game, will play.

The Redskins lost Meriweather and wide receiver Aldrick Robinson after a strange accident during pre-game warm-ups. Meriweather, who has been working his way back from strained ligaments in left knee suffered during the first practice week of the regular season, injured his left knee again when he slammed it into Robinson’s helmet. Robinson is also out for the game.

The Redskins didn’t officially specify whether Meriweather’s inactivity was because of his latest left knee injury. But he had been expected to play, a person with knowledge of the situation said.

Strong safety Brandon Meriweather will miss a fourth consecutive game. (John McDonnell/The Washington Post)

Also inactive for the Redskins are quarterback Rex Grossman,  running back Ryan Grant, linebacker Markus White and guard Adam Gettis.

Wide receiver Leonard Hankerson will start opposite Garcon, and Reed Doughty will start at strong safety instead of DeJon Gomes, who struggled in three starts.

Garcon, meanwhile, was listed as questionable on Friday’s injury report, when he was still limited by the right foot injury he suffered in the season opener. Garcon wasn’t able to practice fully any day last week. He was on the field testing out his foot on pass routes prior to Sunday’s game, and was wearing game pants.

The Redskins signed Garcon to a five-year, $42.5 million contract in March. He played eight snaps against the New Orleans Saints, recording four catches for 109 yards, including an 88-yard touchdown. But he strained his right foot on that touchdown run. The injury is on the ball of his foot and has been described as “turf-toe-like.”

Williams went down with his knee injury on the second offensive play of Washington’s 38-31 loss to Cincinnati last Sunday. He briefly returned late in the first half, but left the game for good three plays into the third quarter.

Williams didn’t practice fully last week, and said Friday that if the game was that day, “it would be tough,” to play at that time.

Williams still walked with a noticeable limp during pre-game warmups Sunday, prior to kickoff versus the Bucs, but he and the Redskins’ staff apparently believe he can be effective.