Super Bowl-winning quarterback Matthew Stafford has indicated his long-term future is with the Los Angeles Rams stating it is where he wants to "put some roots down".

Stafford recently agreed to a four-year extension with the Super Bowl champions, with the deal worth $160million according to ESPN.

The 34-year-old QB spent 12 seasons with the Detroit Lions where he never won a postseason game before joining the Rams last year.

Stafford led the Rams to the Super Bowl LVI title over the Cincinnati Bengals, with the new deal reward for that, yet he said there was never any doubt for him.

"I just had so much fun playing for this team this year, playing for this organisation, this coaching staff, and I wanted to make sure I was able to do this for a long time," Stafford told reporters.

"I obviously wanted to say thanks to the Rams for giving me that opportunity. It was a lot of hard work getting to this point.

"I'm just happy where we are and to know what the future looks like for me and for our team. It's an exciting thing as a player to kind of know where you are going to be and be able to put some roots down and really go try to make something really special for a while.

"I was just trying to find something that felt good for both sides where we are able to continue to add players and pieces around me.''

Stafford completed 404 of 601 passes at a 67.2 completion rate for 41 touchdowns last season with 17 interceptions.

The Rams have bolstered their ranks with the addition of free agent wide receiver Allen Robinson II from the Chicago Bears.

"I'm eager to get out there and get to work with him and see what it's like throwing to him," Stafford said.