Redskins.com's Stephen Czarda recaps what the Redskins' 2016 opponents have done in free agency so far. Today's look is at the Vikings.

While the Washington Redskins don't know when 15 of their 16 games during the 2016 regular season will take place (their game against the Cincinnati Bengals has been confirmed for Oct. 30 at Wembley Stadium in London), they do know who they will be facing already.

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2016 Home Games:** Cleveland Browns, Green Bay Packers, Carolina Panthers, Pittsburgh Steelers, Minnesota Vikings, Dallas Cowboys, Philadelphia Eagles, New York Giants.

2016 Away Games: Chicago Bears, Cincinnati Bengals (London), Arizona Cardinals, Detroit Lions, Baltimore Ravens, Dallas Cowboys, Philadelphia Eagles, New York Giants.

While teams are still making some moves in free agency, here's a look at what the Redskins' opponents have done to date since Super Bowl 50, continuing with a look at what the Minnesota Vikings have done to date in free agency:

Minnesota is coming off an unexpected NFC North title in 2015, as they knocked off Green Bay in the final regular season game in 2015 to secure their first division championship since 2009.

The Vikings, of course, are led by running back Adrian Peterson, who, despite coming off a season in which he appeared in just one game, finished 2015 with 1,485 rushing yards and 11 touchdowns.

To help both Peterson and third-year quarterback Teddy Bridgewater, the team brought in veteran offensive linemen Alex Boone and Andre Smith.

Boone, undrafted out of Ohio State, played his first six NFL seasons with the San Francisco 49ers.

He started 59 games over the last four seasons.

Smith, meanwhile, was the sixth-overall pick for the Bengals in 2009, appearing in 82 games with 73 starts over the course of his time in Cincinnati.

The Vikings also signed veteran tight end Brian Leonhardt, who has spent time with the Oakland Raiders, Browns and 49ers over the course of his three-year career.

Defensively, Minnesota signed a pair of linebackers – Emmanuel Lamur and Travis Lewis – along with safety Michael Griffin.

Lamur appeared in all 16 regular season games for the Bengals last season, totaling 40 tackles, while Lewis started four games for the Lions last season.

Griffin was a two-time Pro Bowler for the Titans, appearing in at least 14 games for Tennessee in all nine of his seasons there.

The biggest departure for Minnesota is the speedy Mike Wallace, who bolted for Baltimore after being released.

The team also re-signed the following players: running back Matt Asiata, tackle Carter Bykowski, linebacker Audie Cole, defensive tackle Kendrick Ellis, tight end Rhett Ellison, guard Mike Harris, cornerback Terence Newman, safety Andrew Sendejo, wide receiver Adam Thielen and defensive end Justin Trattou.

On Monday, the Vikings also annonced the re-signing of linebacker Chad Greenway. 

Greenway, the 17th-overall pick in the 2006 NFL Draft, is a two-time time Pro Bowler who has appeared in all but four games since suffering a season-ending ACL tear in his first preseason game as a rookie.

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