It’s the return of the Mack.

Edge rusher Khalil Mack has agreed to a contract extension with the Chargers, the team announced Monday. ESPN first reported Mack will return for his 12th pro season on a one-year deal that will pay $18 million fully guaranteed.

The 34-year-old has earned Pro Bowl recognition in each of his three years with the Chargers. Last season, he helped anchor the NFL’s best scoring defense with six sacks, 39 tackles and 15 quarterback hits and missed only one game because of a groin injury, the first game absence of his Chargers career. Mack’s durability especially stood out next to fellow edge rusher Joey Bosa, who struggled with injuries in the past three years and was released last week.

After Bosa’s release saved more than $25 million in salary-cap space, Mack was one of the Chargers’ top offseason priorities. General manager Joe Hortiz said at the NFL scouting combine he hoped the team could re-sign Mack before NFL free agency officially begins Wednesday.

In addition to Mack, punter JK Scott agreed to terms on a new deal with the Chargers on Monday, according to a person familiar with the situation not authorized to speak publicly. Scott, 29, will return on a two-year, $6 million contract, NFL Media reported, after averaging a career-best 46.7 yards per punt last season, his third with the Chargers.

Mack was slated to be an unrestricted free agent for the first time in his illustrious career this week and said he would prioritize the opportunity to compete for a championship when considering his next destination.

The Chargers, who also released running back Gus Edwards on Monday, went 11-6 in the first year under coach Jim Harbaugh and defensive coordinator Jesse Minter and will return almost the entire defensive coaching staff to build upon that success.

The Chargers haven’t won a playoff game since 2018, and Mack is 0-5 in the playoffs in his career.