Grayson was waived by Chicago on Thursday.
Grayson signed a reserve/future contract with Chicago in January of this year after joining their practice squad in November. The LSU product has yet to see action in a regular-season game, but he still has the chance to find a new team this offseason and change that.
Grayson was cut from Houston's practice squad, Aaron Wilson of the Houston Chronicle reports.
Grayson's departure created a spot for Steven Mitchell, who was signed to the practice squad Monday.