The Las Vegas Raiders have signed quarterback Derek Carr to a three-year contract extension worth $121.5million.

NFL Media's Ian Rapoport reported the Raiders have agreed to a contract with Carr that will keep him with the team through the 2025 season.

It means Carr will earn $141.3m over four years, the deal coming in an offseason that has seen the Raiders make a big statement of their intent to build around him.

The Raiders hired Josh McDaniels, renowned as one of the league's best offensive minds, as their new head coach and then reunited Carr with college team-mate Davante Adams, acquiring the All-Pro wide receiver in a blockbuster trade with the Green Bay Packers.

Las Vegas also signed veteran edge rusher Chandler Jones in a significant boost to the defense, the Raiders stacking the deck around Carr as they look to secure a first playoff win since the 2002 season.

Carr led the Raiders to the playoffs last season, Las Vegas losing in the Wild Card round to the Cincinnati Bengals.

The 2021 campaign was arguably the finest of his career.

Among quarterbacks with at least 200 pass attempts, Carr finished third in well-thrown percentage. Trailing only Joe Burrow and Ryan Tannehill, he delivered an accurate, well-thrown ball on 81.6 per cent of his passes.

None of the eight quarterbacks to average more air yards per attempt than Carr's 8.29 had a superior well-thrown percentage, his ability to blend ball placement and downfield upside further illustrated by his 67 completions of 20 yards or more in 2021. Tom Brady (75) was the sole quarterback to end the season with more.

Carr will hope to build on those impressive numbers in 2022 and vindicate his lucrative new contract, which is reported to contain a no-trade clause, essentially meaning he would be able to pick his new team if the Raiders decide to part with him in the coming years.

But by signing Carr to such a high-income extension, the Raiders are banking on such a divorce never coming to pass.