Arnold suffered a calf injury during practice Wednesday, Brian Batko of the Pittsburgh Post-Gazette reports.

Arnold (calf) signed a contract with the Steelers on Tuesday, Mike Garafolo of NFL Network reports.

The Texans placed Arnold (calf) on injured reserve Saturday, Jonathan M. Alexander of the Houston Chronicle reports.

Arnold (calf) has been ruled out ahead of Sunday's game against the Cardinals.

The Texans signed Arnold to their 53-man roster Tuesday, Aaron Wilson of KPRC 2 Houston reports.

Arnold was waived by the Texans on Saturday.

Coach Demeco Ryans said Wednesday that Arnold is ready to play nickel corner in place of Tavierre Thomas (hand), Brooks Kubena of the Houston Chronicle reports.

Houston activated Arnold (quadriceps) from its injured reserve list Friday ahead of Saturday's game at Tennessee.

Arnold (quadriceps) was designated to return from injured reserve Wednesday, Jonathan M. Alexander of the Houston Chronicle reports.

Arnold (quadriceps) was placed on the Texans' injured reserve Thursday.