The Dolphins’ banged-up secondary took another hit Wednesday. The team placed nickel cornerback Cornell Armstrong on injured reserve. He’ll miss at least four games after suffering a hamstring injury in a loss to the Panthers last Sunday.
The Dolphins now have three nickel corners on IR. Along with Armstrong, Jason Marshall and Artie Burns are on the shelf. Marshall has missed two games with a hamstring injury, which opened up playing time for Armstrong, while Burns won’t factor in at all this season after tearing his ACL during training camp.
The injury woes at nickel CB are only part of the problem in Miami’s secondary. Like Burns, corner Kader Kohou tore his ACL in July. The Dolphins have also gone without corner Storm Duck since he injured his ankle in a Week 1 loss to the Colts. Their absences help explain why Miami’s defense ranks last in the NFL in opposing passer rating and completion percentage,
Armstrong first became a Dolphin when they chose him in the sixth round of the 2018 draft. He played in 15 games as a rookie, but the Dolphins released him after the season. Armstrong went on to see action with the Texans (2019) and Falcons (2022) before Miami brought him back over the summer when it placed Burns on IR. The 30-year-old has played in three games this year and registered two tackles.
Having lost another nickel CB, safety Minkah Fitzpatrick will have to continue helping the Dolphins fill that role, per Barry Jackson of the Miami Herald. With Fitzpatrick needed elsewhere, the Dolphins signed practice squad safety Jordan Colbert to their active roster on Wednesday. The 25-year-old made his NFL debut in the Dolphins’ Week 3 loss to the Bills. All 12 of his snaps came on special teams.
To take Colbert’s spot on their practice squad, the Dolphins signed Kendall Sheffield. The former Falcon, 49er, Titan, and Jet has appeared in 49 games (20 starts) since debuting in 2019. Sheffield signed with the Dolphins in late May, but they cut him in late August. They elected to bring him back after working out free agent corners Ethan Robinson, Daequan Hardy, and Myles Purchase on Tuesday, according to Jackson.