The Kansas City Chiefs have agreed to trade Alex Smith to Washington for a third round pick and Kendall Fuller. Kansas City received interest from at least six other teams.

Smith will sign a four-year extension with Washington averaging $23.5 million per season with $71 million in guaranteed money.

Washington will part ways with Kirk Cousins, who signed a franchise tag each of the past two seasons.

The Chiefs will start Patrick Mahomes at quarterback in 2018.

Smith, 33, came to the Chiefs in a 2013 trade that sent two second-round draft picks to the San Francisco 49ers.

Jay Gruden was less than enthusiastic in describing the 2017 season of Kirk Cousins, who will again be a free agent.

"It's hard to say, 'Wow, this guy really was outstanding,'" Gruden said, speaking in general. "Kirk had his flashes where he was really good. From a consistent standpoint, over the course of 16 games, we're 7-9. He did some great things, threw for over 4,000 yards and [27] touchdowns. He's a very, very good quarterback without a doubt, but as far as getting us over the hump from 7-9 to winning the division with all the injuries we had, he competed and did some good things."

Washington must decide whether they want to use a franchise tag for a third time or apply the transition tag. 

Gruden said Washington must plan on the possibility of Cousins not returning.

"We have to," Gruden said. "There are ways to plan for it. We have to make sure we have all our ducks in a row whether he's here or not. We have to make this team better."

The NFL has five teams ranking in the top-10 in DVOA on both Offense and Defense at the end of the regular season in the Vikings, Rams, Saints, Steelers and Eagles.

The Chiefs, Cowboys, Chargers, Falcons and Patriots also rank in the top-10 on offense, while the Jaguars, Broncos, Panthers, Ravens and Cardinals rank in the top-10 on defense.