The Patriots announced they have gotten six of nine draft selections under contract.
The team also made official the signings of nine rookie free agents and the release of offensive lineman Tony Garcia.
Bentley played in 38 games over his four-year career at Purdue. The linebacker made 272 total tackles, one sack, two interceptions with one returned for a touchdown and seven passes defensed.
Sam played in 35 games over his four-year career at Arizona State. The linebacker made 240 total tackles, one sack and three pass breakups.
Berrios, a receiver at Miami, appeared in 46 career games with 20 starts. He caught 100 passes for 1,175 yards and nine touchdowns. The Hurricanes also used him as a returner.
Etling served as a two-year starter at quarterback at LSU after transferring from Purdue following the 2014 season. He went 16-7 while passing for 4,586 yards and 27 touchdowns.
Crossen, a defensive back, played 46 games with 23 starts at Western Carolina. He made 165 tackles, one sack, three interceptions and 19 pass breakups.
Izzo, a tight end at Florida State, appeared in 41 games with 36 starts and totaled 54 career receptions for 761 yards and six touchdowns.