The expected deal will guarantee Norwell $30 million and on average make him the NFL's most well-paid guard.
The 26-year-old Norwell has spent his entire National Football League career as a member of the Carolina Panthers up until this report surfaced.
Norwell's deal with Jacksonville can not be made official until the new NFL league year starts on Wednesday afternoon.
He was named a first-team All-Pro in 2017, the first such honor of his career, and was considered the highest-rated offensive lineman heading into free agency.
Not only that, but the Jaguars did have the best rushing offense in the league last season. It was known that the Panthers couldn't retain Norwell, and many assumed Norwell was bound for NY to reunite with Dave Gettleman, the former Panthers GM who signed him in free agency after he went undrafted in 2014.
San Francisco last season allowed 43 sacks, tied for the seventh most in the NFL.