The Dolphins will need to make a number of roster moves in order for them to address roster needs and some notable free agents like Olivier Vernon and Lamar Miller, so you can expect to see even more moves from them in the coming days.
Fox, 27, was entering the final year of his two-year, $2.5 million contract and was set to make a base salary of $1,280,000 for the 2016 season.
According to OverTheCap.com, releasing Fox will free up $1,380,000 in available cap space while creating $162,500 in dead money.
In 2015, Fox appeared in 15 games for the Dolphins and was rated by Pro Football Focus as the No. 74 offensive tackle out of 76 qualifying players.