Derby (foot) finished the 2018 campaign with three catches for 48 yards and a touchdown in four games.
Derby missed most of the season while nursing a foot injury that eventually relegated him to injured reserve in early December. He averaged 31 offensive snaps in his four appearances and opened the season as Miami's top pass-catching option at tight end. The team surely wants 2018 second-round pick Mike Gesicki to seize that role in 2019, but there may still be room for Derby on the roster as a depth tight end and special-teams contributor. The 27-year-old can also weigh other options, as he'll become an unrestricted free agent in March if he doesn't re-sign with the Dolphins first.