Grimes and the Texans agreed to a one-year extension on Friday, Aaron Wilson of the Houston Chronicle reports.
Grimes will stay in Houston for at least one more season, though the specifics of the contract are still unknown. In his last three seasons in Houston he recorded 116 caries for 508 yards, 38 receptions for 355 yards, and three total touchdowns in 32 games. He'll look to compete for second-string reps next season behind new addition Lamar Miller.