Running back David Montgomery has signed a two-year, $18.25 million contract extension that ties him to the Detroit Lions through the 2027 season, a source told ESPN's Adam Schefter on Saturday.

The deal includes $10.5 million in new guaranteed money, the source said. This makes him the seventh-highest paid running back in the NFL in terms of new money per year ($9.125 million).

The Lions announced the extension Saturday night but did not disclose terms.

The 27-year-old Montgomery still had two years left on his current contract, but the Lions decided to secure their one-two punch in the backfield early with him and second-year defenseman Jahmyr Gibbs.

Montgomery is Detroit's second-leading rusher with 271 yards and four touchdowns on a team-high 63 carries this season. Gibbs has 285 rushing yards on 54 attempts and three touchdowns.

In 2023, Montgomery signed with the Lions as an unrestricted free agent after spending his first four seasons with the Chicago Bears. He has started all 18 games he has appeared in for the Lions.

After Detroit's Week 4 win over the Seattle Seahawks, Gibbs said that he and Montgomery were the best RB duo in the NFL.

“I don’t think it’s going to be close,” Gibbs told ESPN. “We can both do everything, so it's difficult for the defense to go against us. I mean, the production speaks for itself too.”

Montgomery has scored a rushing touchdown in seven straight games, tied with Billy Sims (1980-81) for the longest streak in franchise history, according to ESPN Research.

Since joining the Lions, he has 17 rushing TDs, which is the fourth-most in the league during that span. Only Derrick Henry (18), Raheem Mostert (18) and Kyren Williams (18) have more.