Sam Brenner has been a quality backup center for the Dolphins and his assignment to the practice squad came as a surprise to some as he has shown improvement and solidified himself as the second best center on the roster. Jonas Gray was acquired by the Dolphins after the Patriots released him during their initial roster cuts.
Jonas Gray was brought in by the Dolphins as an unsigned rookie free agent in 2013 and returns to the team after a moderately successful season with the Patriots in which he became the first NFL running back since 1921 to score four rushing touchdowns in a game after entering the game with zero career touchdowns.