Dolphins bolster secondary with Tanner Wall signing and Ahmari Harvey waiver claim

The Miami Dolphins made a small set of roster moves that tighten their defensive depth heading into the final stages of the NFL offseason. In an official release dated Aug. 7, Miami announced it signed safety Tanner Wall, claimed cornerback Ahmari Harvey off waivers from the Pittsburgh Steelers, and made additional changes in the quarterback and safety groups.

Wall’s addition gives the Dolphins another option in the secondary. He comes in as a safety, a position where teams often look for coverage versatility and special-teams readiness during roster construction, especially when training camp and the preseason are used to sort out roles.

Harvey’s route to Miami is different, but the objective is similar. The Dolphins claimed the cornerback off waivers from Pittsburgh, a transaction type that typically reflects a team’s evaluation that a player can contribute, even if he was not retained on the original club’s roster. For Miami, it represents an opportunity to add competition at cornerback and create more cover-unit possibilities as the coaching staff tests matchups.

In the quarterback room, Miami waived quarterback Mark Gronowski. Moves like this are common late in camp as teams reduce the number of players at each spot and attempt to create a clearer depth chart. For the Dolphins, the decision suggests they have decided to go forward with other quarterback options already in the organization’s mix.

The Dolphins also announced that they waived/injured safety Omar Brown. The waived/injured designation is a roster mechanism teams use when a player is dealing with injury and the team wants to make a change on the active roster while processing the injury status within league rules. It is a reminder that even routine roster math can be driven by health and availability during this stretch of the calendar.

Taken together, the moves point to a Dolphins emphasis on defensive personnel adjustments. By adding Wall and Harvey while trimming other roster spots, Miami is shaping the secondary group to fit the work being done in training camp, where teams prioritize players who can learn quickly and contribute immediately on defense or special teams.

What to watch next is whether the Dolphins keep building their cornerback and safety rotation through additional claims or signings, or if these moves report the club is closing in on its preferred depth chart. In the short term, preseason appearances and practice reps will be the most direct indicators of who is separating from the rest of the field and who is being lined up for game-week roles.