The Browns are back on the practice field today as they start prepping for the 5-and-5 Houston Texans Sunday at Browns Stadium.  The Texans started the season 2-and-0, then were hit hard with injuries as they lost wide out Andre Johnson until this past week, and also for a time have lost quarterback Matt Schaub.  Their offense is ninth in the league, and their defense is 18th.  The Browns are still heavily involved in the AFC playoff race following Sunday’s dramatic 33-30 overtime win over the Ravens in Baltimore.   Kickoff for the Browns and Texans at the Stadium is 1 p.m. Sunday.