Grimes will be a free agent once the market opens Wednesday at 4 PM ET, Rand Getlin of NFL Network reports.
Entering the offseason as a restricted free agent, Grimes and the Texans were unable to settle at an amenable price. In three seasons with the club, he notched 116 carries for 508 yards (4.4 YPC), 38 receptions (on 45 targets) for 335 yards, and three total touchdowns in 32 games. Considering the workload, another reserve role is likely the best-case scenario on his next squad.