The Dolphins were awarded Derby (shoulder) off waivers Wednesday, Armando Salguero of the Miami Herald reports.
Derby was waived from the Broncos' injured reserve Tuesday and probably won't play again this season. He caught 19 of 32 targets for 224 yards and two scores in nine games with Denver, serving as the team's top pass-catching tight end for most of the season. Derby presumably will have to fight for a spot on the Miami roster in 2018 even if he enters training camp at full strength.