C.J. Mosley is a quality late addition for Dolphins

The best part of free agency is over by this time of year. The market has been open for three months, and most of the available talent remaining is fringe players who are either old, rebounding from injury or will have a tough time making a 53-man roster in the fall.

The Miami Dolphins, however, found a late gem in defensive tackle C.J. Mosley. ESPN’s Adam Schefter reports Mosley signed a one-year contract with Miami on Wednesday, about 24 hours after he visited with the team.

Mosley is both healthy and productive. He played 15 games, including eight starts, for the Detroit Lions last season, pairing with new Dolphins defensive tackle Ndamukong Suh to help Detroit lead the NFL in run defense. Mosley finished with 26 tackles and 2.5 sacks last season.

I saw that Detroit defense in person, and it was a vicious group. Now Miami has signed both of the Lions' starting defensive tackles from a year ago. The Dolphins are clearly out to change their identity and become a more physical and aggressive defense. Miami ranked No. 24 against the run last season.

Mosley is joining the Dolphins late in the process, but he will push current starting defensive tackle Earl Mitchell, who was inconsistent last season, and also provide veteran depth.

Often, June free-agent signings do not make much of an impact. But Mosley is an exception and should be a solid contributor this season.