John Wall is staying with the Washington Wizards.

The All-Star point guard announced he has signed a four-year contract extension with the Wizards in a video posted on social media.

ESPN reported the deal is worth $170 million and will commence from 2019, with Wall having two years left to run on his existing agreement.

"I just had to think it out with my family and friends and make a decision," Wall said in the clip posted by Uninterrupted.

"Y'all know where I wanted to be at. I'm happy I'm coming back another four years to be a Washington Wizard.

"Y'all know what I'm going for. Definitely gonna bring y'all the championship, that's my ultimate goal, and I won't stop till I get it."

Wall, 26, is coming off a career year after averaging a career-high 23.1 points, 10.7 assists and 2.0 steals per game. He also shot a career-best 45.1 per cent from the field.

The Wizards finished 49-33 last season before falling to the Boston Celtics in seven games in the Eastern Conference semi-finals.