The New England Patriots have signed offensive lineman J.J. Dielman, according to the team's official site

Dielman was a 5th round pick out of Utah in the 2017 NFL Draft. He was most recently on the practice squad of the Los Angeles Rams. He has yet to play in a regular-season game. 

Dielman has spent most of his time at the guard position, so barring any unforeseen changes he will play behind Joe Thuney and/or Shaw Mason on New England's offensive line.