Watkins, a guard, spent two seasons with the Eagles and started 18 games before losing his job early last year. He was a surprise choice with the 23rd overall selection at age 26 when the Eagles made him the oldest first-round pick at that time since 1980.
Watkins was expected to join the Dolphins for Tuesday’s practice. He’ll provide depth behind starting guards Richie Incognito and John Jerry.
Miami waived second-year center Josh Samuda.