I'm not a Texans fan (cool logo and unis though) but I'll answer your question anyway.
He hurt his hammy on Sunday and left the game. He's considered day to day as the injury is not serious.
Personally I don't care for him as a Fantasy TE. There too much around him now. DD is the dump off instead of Miller. A.Johnson is there to take balls away from him as well. Get away from his 2002 season where he was Carr's favorite receiver. Move on. Besides this guy gets hurt a bunch. He had back spasms in the preseason and last year he had a dislocated finger that hampered him.