The Texans signed free agent Stanford Routt on Tuesday, according to a Houston Chronicle report.
Routt hadn't hooked up with an NFL team since being cut by the Kansas City Chiefs last month. He had also worked out for the Detroit Lions.
The Texans were without top corner Johnathan Joseph last week, and lost nickel cornerback Brice Mccain to foot surgery Monday.
They are scheduled to play the New England Patriots on Monday Night Football.