Patriots deploying veteran defender at new position

At 6-foot-3 230-pounds, Mapu has the size and athleticism to drop into coverage or blitz from the second level. He was listed as a safety in college but primarily played out of the slot with a secondary role in the box. During his first two NFL seasons, he played 313 snaps in the box, 221 as a free safety, and 100 in the slot, per Pro Football Focus.

Mapu will have to compete with Jack Gibbens and Jahlani Tavai for the backup linebacker jobs behind Robert Spillane and Christian Elliss, who took first-team reps in the spring, per ESPN’s Mike Reiss.

Gibbens signed with the Patriots this offseason after starting his career under Mike Vrabel in Tennessee. That should give him a strong chance at making the roster, but only $300K of his $1.3M deal is guaranteed, per OverTheCap.

Tavai, meanwhile, is recovering from a calf injury suffered in OTAs. That may threaten his roster odds, according to Volin, but he still has $2.1M of guaranteed salary across the next two seasons that could discourage the Patriots from releasing him.

The Patriots could also choose to carry all five linebackers knowing that Mapu can also provide depth in the secondary if needed.