New England Patriots offensive lineman Donald Thomas is expected to test the free agent market which is set to begin on Tuesday, according to Shalise Manza Young of The Boston Globe.

While the Patriots have shown interest in re-signing Thomas, the 27-year-old is “fully expected” to test the open market, according to Young.

Thomas played in all 16 regular season games for the Patriots last season. He filled in for multiple injured starters, including Logan Mankins and Dan Connolly.

While he proved pivotal to the team’s offensive line last season, if Thomas were to remain with the Patriots for next season and beyond they would expect to pay him as a reserve player. He will try and see if other teams feel he should be a regular after his production last season.