The Dolphins placed center/guard Jake Brendel on injured reserve, according to Armando Salguero of the Miami Herald (on Twitter). Brendel was activated from IR a little over a month ago, so his season will end after just four appearances. 
[RELATED: Dolphins Cut CB Dee Delaney]
Brendel, 26, joined the Dolphins’ practice squad in 2016 after going undrafted out of UCLA. He went to appear in all 16 games for Miami in 2017, although he didn’t see much action on the field. Brendel played 67 snaps on offense and 87 snaps on special teams, serving in a backup role for the entire campaign. Brendel suited up for the first time this year in Week 9 and started for Miami in Weeks 10, 12, and 13. A knee injury kept him off the field for Sunday’s win (and miraculous finish) over the Patriots, and it’s apparently serious enough to end his season.
Without Brendel, the ‘Fins may need to sign another interior lineman to support Ted Larsen, Travis Swanson, and Jesse Davis. The banged up unit, which previously lost Daniel Kilgore and Josh Sitton to injury, will close out the year against the Vikings, Jaguars, and Bills. The Dolphins do not control their own destiny, but they are still alive in the Wild Card hunt and even have a slim, but technically possible, path to the AFC East crown.
So is this guy a free agent now?
Two trips to IR in a season for the same injury.
Would make him a free agent under the NFLPA contract.