Blount, 29, was the Patriots' top power back in 2015. He finished with a team-high 703 yards on 165 carries with six touchdowns before suffering a season-ending hip injury Dec. 13 in a game against the Houston Texans.
Blount's career has twice been revived in New England. In 2013, he was acquired in a trade with the Tampa Bay Buccaneers, and after a solid season, he inked a two-year deal with the Pittsburgh Steelers as a free agent in 2014. But after things soured for Blount in Pittsburgh and he was waived late in the 2014 season, he immediately went back to the Patriots on a two-year contract.
The 6-foot, 250-pound Blount has 869 carries and 3,961 yards with 31 touchdowns over his six-year career.
ESPN Patriots reporter Mike Reiss contributed to this report.