Watt, Mercilus punish Ben, but Steelers storm back

The Texans’ defense got off to a stellar start on Monday night in Pittsburgh, but the Steelers aren’t going away without a fight. As expected, J.J. Watt is having a big game, with a sack and a recovery of a Ben Roethlisberger fumble. That fumble was forced by Whitney Mercilus, who’s also having a big…