The Dolphins signed T.J. McDonald to a one-year deal this past offseason to bolster their secondary. They’re so happy with their decision to add the safety that they’re already discussing an extension with his representatives, Armando Salguero of The Miami Herald writes. 
McDonald, 26, has thrived over the last few months. He won’t be in action until the ninth game of the season thanks to his substance abuse suspension, but he has impressed the Dolphins by flashing the skills that made him a four-year starter with the Rams.
Last year, McDonald had 62 total tackles, two interceptions, one sack, and six passes defensed for Los Angeles, but the Rams did not show any interest in re-signing him. He graded out as as Pro Football Focus’ No. 58 safety.
McDonald projects to start opposite strong safety Reshad Jones when he is in the lineup. In the interim, Nate Allen will hold down the fort at free safety.