Defensive end Everson Griffen and right tackle Mike Remmers were unable to practice Wednesday, the Vikings’ first session since returning from the bye week.

Remmers remains in the concussion protocol 10 days after he was pulled from the Vikings’ 33-16 victory over the Browns in London. He seemingly injured his head while trying to cut block Browns linebacker Jamie Collins Sr. on the fifth snap of the game. Tackle Rashod Hill took Remmers’ place at the start of Wednesday’s practice.

Griffen, third in the NFL with 10 sacks, was held out because of a foot injury, which is likely the one he downplayed after the Browns game. He warmed up in full pads with teammates, but was listed as not practicing Wednesday. Another defensive end, Stephen Weatherly, did not practice because of a knee injury.

Quarterback Teddy Bridgewater (knee) was a full participant in his first practice on the active roster.

Jeremiah Sirles continues to recover from a sprained knee suffered Oct. 22 against the Ravens. The Vikings re-signed guard Willie Beavers to the practice squad this week while down two offensive linemen. Left guard Nick Easton returned as a full participant in practice for the first time since straining his calf Oct. 9 in Chicago. Easton has missed the past three games.

Safety Anthony Harris (hamstring) and guard Danny Isidora (ankle) were limited.

Meanwhile, the Redskins injury report featured 16 players, including many offensive linemen. Left tackle Trent Williams (knee) was again unable to practice Wednesday. Guard Brandon Scherff (knee), reserve tackle Ty Nsekhe (core muscle) and right tackle Morgan Moses (ankle) were limited.

Focus on tight ends

Tight end Kyle Rudolph has as many touchdowns against Sunday’s opponent, the Redskins, as he does against the Packers — three. Yet he’s played Washington only three times vs. 11 games against the Packers.

“Hopefully we can keep that trend going. That would be great,” Rudolph said. “We kind of treat this like a division game. We’re very familiar with each other.”

Tight end play could be a critical factor for both teams. Last year, the Vikings lost 26-20 in Washington when they allowed tight ends Jordan Reed and Vernon Davis to catch a combined five passes for 107 yards and a touchdown.

Staying clean

Yes, Washington benefited from three missed field-goal attempts by ex-Vikings kicker Blair Walsh in the Redskins’ 17-14 victory in Seattle last weekend. But the Seahawks also were penalized 16 times for 138 yards, which is a mistake coach Mike Zimmer doesn’t want the Vikings to repeat in Washington on Sunday.

“The thing [the Redskins] do is they’re the second-least penalized team in the NFL,” Zimmer said. “So they end up [defending] second-and-15, second-and-20 and first-and-20. They did a really good job of pressuring [Seahawks quarterback] Russell Wilson in that game.”

The Vikings are the fifth-least penalized NFL team with 48 flags counted against in eight games.

Keenum unshaken

The Vikings’ starting quarterback for at least Sunday, Case Keenum, has led the offense through a 5-2 start but still faces uncertainty with Bridgewater set to back him up. He insisted he’s unfazed by this new situation, after what he experienced as a member of the Rams.

“Last year, every interview I did was about Jared [Goff, the Rams’ quarterback and No. 1 overall draft pick in 2016],” Keenum said. “I’ve been prepared, whether it’s Sam [Bradford], Teddy or whoever else, I’ve been prepared for these types of situations. Water off my back.”

Etc.

• Former Vikings safety Antone Exum Jr., a 2014 sixth-round pick who started two games, signed with the 49ers. Exum Jr. joins three other former Vikings, guard Brandon Fusco, defensive end Datone Jones and linebacker Elijah Lee, in San Francisco.