Alonso is the only newcomer at the position other than rookie free agents
The Dolphins re-signed unrestricted free agents
From a personnel standpoint, it would appear the focus in training camp will be on determining backup roles and roster spots instead of picking starters.
BREAKING DOWN DOLPHINS LINEBACKERS
• Jelani Jenkins (6-0, 240) — Heading into his fourth season, Jenkins is hoping the injury issues that slowed him in 2015 are long gone and he can return to the form he showed during his breakout 2014 season. Jenkins’ athleticism and coverage skills make him a good fit for new defensive coordinator Vance Joseph’s attacking scheme.
• James-Michael Johnson (6-1, 238) — Johnson had two stints with the Dolphins last season but couldn’t make much of an impact after first arriving in November. He does bring experience to a young linebacker corps, having started 18 games in his first three NFL seasons after being a fourth-round pick of the Browns in 2012.
• Spencer Paysinger (6-2, 249) — After signing a one-year contract as an unrestricted free agent last spring, Paysinger re-upped for another season with the Dolphins fully anticipating his role again primarily will come on special teams. His experience makes him a valuable backup, though.
• Zach Vigil (6-2, 240) — Like Hewitt, Vigil appeared in all 16 games with two starts as a rookie free agent. He made his biggest impact on special teams, most notably a blocked punt in the victory at Philadelphia, but is shooting for a bigger role on defense.
ROOKIES OR FIRST-YEAR PLAYERS
• Akil Blount (6-2, 249) — The son of Hall of Famer Mel Blount has intriguing physical skills. Before he was moved to linebacker at Florida A&M, he recorded 30 sacks as a high school defensive end.
• James Burgess (6-0, 233) — Burgess went undrafted out of Louisville because of a lack of ideal size, but he tremendous coverage ability gives him a chance to make the roster as a rookie free agent.
• Tyler Gray (6-4, 236) — A standout at Boise State, where he played with