The Texans cut running back Tyler Ervin, their primary kick returner for the past three seasons.
They claimed wide receiver DeAndre Carter off waivers from the Philadelphia Eagles.
Ervin's release comes as a surprise.
He was averaging 25.3 yards per kickoff return and 8.3 yards per punt return.
He had filled in as a slot receiver with Keke Coutee sidelined with a hamstring injury, catching three passes for 35 yards.
A former fourth-round draft pick from San Jose State, Ervin had consistently drawn praise from Texans coach Bill O'Brien.
He spent the majority of last season on injured reserve with a leg injury.