Keith Cooper Jr. Signed to Miami Dolphins 53-Man Roster

The Miami Dolphins signed defensive tackle Keith Cooper Jr. off the Carolina Panthers' practice squad directly onto their 53-man active roster. Cooper has appeared in four career NFL games between Cleveland and Miami, recording one tackle. He rejoined Miami to provide defensive line depth after starting defensive tackle Zach Sieler was ruled out for the remainder of the 2026 season with a biceps tear.