Dolphins add quarterback Mark Gronowski and inside linebacker Cam Riley, place Jamaree Salyer on injured reserve

The Miami Dolphins announced a set of NFL roster transactions on Sunday, adding quarterback Mark Gronowski and inside linebacker Cam Riley while also placing guard/tackle Jamaree Salyer on injured reserve. In the same move set, the Dolphins waived/injured cornerback Ethan Robinson, a designation that typically indicates a team is looking to manage roster health while retaining the injured player’s rights depending on subsequent waiver outcomes.

For the Dolphins, the additions are focused on depth at positions that can be stressed early in the year. Quarterback depth matters in training camp and the preseason, particularly if a team wants a clear plan for snaps and game management in the event of an injury or performance-related shakeup. Mark Gronowski’s signing gives Miami another option in the quarterback room as it finalizes its preferred top group and reserves.

At linebacker, the Dolphins brought in Cam Riley as an inside linebacker, a role central to run fits and pass coverage calls from the middle of the defense. Inside linebackers often absorb a heavy snap load and handle both coverage responsibilities and run-and-stunt adjustments. Adding Riley indicates Miami is continuing to build its depth and contingency plans at a position that can be pivotal to defensive reliability across a long season.

Miami also made a health-related roster decision involving Jamaree Salyer, moving the guard/tackle to injured reserve. In practical terms, injured reserve removes a player from the active roster during the period specified by NFL roster rules, while also allowing teams to continue evaluation without using an active roster spot. The Dolphins’ move suggests Salyer’s injury status was significant enough that the team chose to preserve the player’s season timeline rather than keep him on the weekly roster picture.

The Robinson transaction adds another layer to Miami’s roster management. The Dolphins waived/injured Ethan Robinson, which is a roster mechanism used for players dealing with injury concerns. If a waived/injured player clears waivers, the team can typically proceed with the next roster step allowed under the league’s rules, though the exact outcome depends on waiver claims and the player’s medical situation.

Taken together, the Dolphins’ announcements show a team actively balancing upside, availability, and roster math. Signing Gronowski and Riley addresses two key depth needs, while the injured reserve and waived/injured moves reflect the reality that multiple positions can be affected by health changes as teams move from offseason preparation into the regular-season roster cycle.

What to watch next for Miami is how these moves affect the immediate depth chart, particularly at quarterback and inside linebacker, and whether any further roster adjustments follow as medical evaluations progress. With Salyer on injured reserve, the Dolphins will also be watching for who steps forward on the interior line and how the guard/tackle rotation solidifies.