MIAMI GARDENS — Another Miami Dolphins cornerback has landed on injured reserve.

Dolphins coach Mike McDaniel said Wednesday nickel cornerback Cornell Armstrong is going on IR with his hamstring injury .

With the team depleted at the position, the team will be signing a cornerback to be named later, according to McDaniel, specifically one who can line up as a nickel.

“Among several things, we will be adjusting our roster,” McDaniel said. “We will be adding a nickel. … We’ll be adding a player, and then there will be some subsequent moves that we’ll do throughout the week.”

Armstrong was already substituting for rookie nickel cornerback Jason Marshall Jr., who himself is on IR recovering from his own hamstring ailment.

Storm Duck, a starter to begin the season, is still not ready to

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