The Jacksonville Jaguars and linebacker Myles Jack have agreed to a four-year contract extension worth $57 million, including $33 million guaranteed, a source told ESPN's Adam Schefter.
The agreement will make Jack one of the three highest-paid inside linebackers in the NFL, behind only Bobby Wagner and C.J. Mosley.
Jack slid to the second round of the 2016 draft because of medical concerns, but he played all 16 games in each of his first three seasons. The 23-year-old set career-highs last year with 107 tackles, 2.5 sacks, one forced fumble, and one interception.
Jack, who's entering the final year of his rookie contract, will be tied to the Jaguars through the 2023 season.
