Dee Delaney‘s stint with the Dolphins lasted only four days. Barry Jackson of the Miami Herald reports (via Twitter) that Miami has cut the defensive back. Cornerback Jalen Davis has been promoted from the practice squad to take the open roster spot.

Delaney, an undrafted rookie out of the University of Miami, caught on with the Jaguars after the draft. He eventually landed on the team’s practice squad, and he was promoted to the active roster in late October. He ended up appearing in two games with Jacksonville, playing mostly on special teams.

He was waived by the Jaguars earlier this week, and the Dolphins ended up claiming the 23-year-old. The team placed tight end A.J. Derby on the practice squad to create an open roster spot.

Davis, an undrafted rookie out of Utah State, has spent the majority of the season on the Dolphins’ practice squad. He’ll be sliding into the bottom of a cornerbacks depth chart that already features Xavien Howard, Bobby McCain, Cornell Armstrong, and Torry McTyer (2017 third-rounder Cordrea Tankersley was previously placed on the injured reserve).