The Texans waived-injured undrafted rookie cornerback Richard Leonard months after he went surgery to repair a torn hamstring.
If Leonard clears waivers, he would revert to injured reserve.
The Texans officially signed undrafted rookie defensive tackle Ra'Zahn Howard, who signed a three-year contract that included a signing bonus.
A former Florida International standout, Leonard played in the NFLPA Collegiate Bowl all-star game.
Leonard was a first-team All-Conference USA selection at cornerback and punt returner.
The 5-foot-9, 189-pounder had 62 tackles last season with 42 solos to rank second on the team with one interception.