Trammell (undisclosed) had a tryout with the Texans on Tuesday, Aaron Wilson of ProFootballNetwork.com reports.
Trammell had joined the Falcons in January but was limited in minicamp with the unknown injury. He then was waived June 16 with a non-football injury designation. His appearance at the tryout implies he has returned to full health, and if it doesn't work out with the Texans, he will continue to try to make a team elsewhere.