No. 1 overall draft pick Jadeveon Clowney hasn't made much of an impact on the field in three games since returning from his knee injury. Now he could be on the sidelines once again.
"I don't know. Dr. Clowney, I'll reconvene with him and see how he's doing," O'Brien said.
NFL Media Insider Ian Rapoport reported earlier this month that Texans coaches were frustrated with Clowney for not returning as soon as hoped from injury. They were hoping to see more "maturity" of him. O'Brien disputed the notion that Clowney had a setback.
"He's improved, no question about it. He's definitely improved. He'll keep getting better and better, the more experienced that he gets," O'Brien said.