Garvin, 28, originally entered the NFL as an undrafted free agent out of West Virginia in 2013. After spending three years with the Steelers, Garvin has played for the Redskins and Seahawks over the past two seasons. Primarily a special teams maven, Garvin saw the most defensive time (18 percent) of his career in 2017, as injuries forced him into starting duty with Seattle. Garvin managed nine tackles, one sack and one forced fumble in 15 games (three starts) for the Seahawks.
Miami, for its part, is currently projected to start Kiko Alonso and 2017 second-round pick Raekwon McMillan in nickel packages, with Stephone Anthony, Mike Hull, Chase Allen and Neville Hewitt in reserve. Garvin would likely spend most of his time with the Dolphins on special teams, where Miami last season ranked 12th in DVOA, per Football Outsiders.