Offensive lineman Jeff Adams, who started both games at left guard this season, will land on injured reserve after Sunday's 24-17 loss to Carolina.
"Jeff Adams will be out for the year with a knee injury," head coach Bill O'Brien said Monday. "I feel for the guy. The guy really put a lot of effort into this season. He was here all offseason, really improved as a player and those things happen. Those injuries happen."
Adams (6-7, 305) was carted off the field during the second quarter and did not return. Adams, who attended Columbia University, is officially listed as a tackle but took snaps in training camp at guard.
The Texans claimed the second-year tackle off waivers in August 2014. He played the final two games of last season, making his NFL debut in Week 16 against Baltimore. Adams had previously spent time on Miami, Cincinnati, and Tennessee's practice squads.
The Texans fans showed up loud and proud in Charlotte for the Texans at Panthers matchup.